diff --git a/.npmignore b/.npmignore
new file mode 100644
index 0000000..7dccd97
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1,15 @@
+lib-cov
+*.seed
+*.log
+*.csv
+*.dat
+*.out
+*.pid
+*.gz
+
+pids
+logs
+results
+
+node_modules
+npm-debug.log
\ No newline at end of file
diff --git a/README.md b/README.md
old mode 100644
new mode 100755
index 9ab8a65..ed32786
--- a/README.md
+++ b/README.md
@@ -35,6 +35,10 @@ Client
 
 
 ## Changelog
+0.2.2
+
+- Update js-binarypack to 0.0.9, removed unused check.
+
 0.2.1
 
 - Update js-binarypack to 0.0.7, fast utf8 support now on by default.
diff --git a/bin/build.js b/bin/build.js
old mode 100644
new mode 100755
index 46fdf0c..415a8b3
--- a/bin/build.js
+++ b/bin/build.js
@@ -38,8 +38,7 @@ var starttagIF = '// if node'
  */
 
 var base = [
-    '../deps/js-binarypack/lib/bufferbuilder.js'
-  , '../deps/js-binarypack/lib/binarypack.js'
+    '../deps/js-binarypack/dist/binarypack.js'
   , '../deps/EventEmitter/EventEmitter.js'
   , 'util.js'
   , 'client/stream.js'
diff --git a/dist/binary.js b/dist/binary.js
old mode 100644
new mode 100755
index ef22991..ca2f648
--- a/dist/binary.js
+++ b/dist/binary.js
@@ -1,79 +1,10 @@
-/*! binary.js build:0.2.1, development. Copyright(c) 2012 Eric Zhang <eric@ericzhang.com> MIT Licensed */
+/*! binary.js build:0.2.2, development. Copyright(c) 2012 Eric Zhang <eric@ericzhang.com> MIT Licensed */
 (function(exports){
-var binaryFeatures = {};
-binaryFeatures.useBlobBuilder = (function(){
-  try {
-    new Blob([]);
-    return false;
-  } catch (e) {
-    return true;
-  }
-})();
+/*! binarypack.js build:0.0.9, production. Copyright(c) 2012 Eric Zhang <eric@ericzhang.com> MIT Licensed */(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+var BufferBuilder = require('./bufferbuilder').BufferBuilder;
+var binaryFeatures = require('./bufferbuilder').binaryFeatures;
 
-binaryFeatures.useArrayBufferView = !binaryFeatures.useBlobBuilder && (function(){
-  try {
-    return (new Blob([new Uint8Array([])])).size === 0;
-  } catch (e) {
-    return true;
-  }
-})();
-binaryFeatures.supportsBinaryWebsockets = (function(){
-  try {
-    var wstest = new WebSocket('ws://null');
-    wstest.onerror = function(){};
-    if (typeof(wstest.binaryType) !== "undefined") {
-      return true;
-    } else {
-      return false;
-    }
-    wstest.close();
-    wstest = null;
-  } catch (e) {
-    return false;
-  }
-})();
-
-exports.binaryFeatures = binaryFeatures;
-exports.BlobBuilder = window.WebKitBlobBuilder || window.MozBlobBuilder || window.MSBlobBuilder || window.BlobBuilder;
-
-function BufferBuilder(){
-  this._pieces = [];
-  this._parts = [];
-}
-
-BufferBuilder.prototype.append = function(data) {
-  if(typeof data === 'number') {
-    this._pieces.push(data);
-  } else {
-    this.flush();
-    this._parts.push(data);
-  }
-};
-
-BufferBuilder.prototype.flush = function() {
-  if (this._pieces.length > 0) {
-    var buf = new Uint8Array(this._pieces);
-    if(!binaryFeatures.useArrayBufferView) {
-      buf = buf.buffer;
-    }
-    this._parts.push(buf);
-    this._pieces = [];
-  }
-};
-
-BufferBuilder.prototype.getBuffer = function() {
-  this.flush();
-  if(binaryFeatures.useBlobBuilder) {
-    var builder = new BlobBuilder();
-    for(var i = 0, ii = this._parts.length; i < ii; i++) {
-      builder.append(this._parts[i]);
-    }
-    return builder.getBlob();
-  } else {
-    return new Blob(this._parts);
-  }
-};
-exports.BinaryPack = {
+var BinaryPack = {
   unpack: function(data){
     var unpacker = new Unpacker(data);
     return unpacker.unpack();
@@ -86,6 +17,8 @@ exports.BinaryPack = {
   }
 };
 
+module.exports = BinaryPack;
+
 function Unpacker (data){
   // Data is ArrayBuffer
   this.index = 0;
@@ -94,7 +27,6 @@ function Unpacker (data){
   this.length = this.dataBuffer.byteLength;
 }
 
-
 Unpacker.prototype.unpack = function(){
   var type = this.unpack_uint8();
   if (type < 0x80){
@@ -400,7 +332,6 @@ Packer.prototype.pack_bin = function(blob){
     this.pack_uint32(length);
   } else{
     throw new Error('Invalid length');
-    return;
   }
   this.bufferBuilder.append(blob);
 }
@@ -418,7 +349,6 @@ Packer.prototype.pack_string = function(str){
     this.pack_uint32(length);
   } else{
     throw new Error('Invalid length');
-    return;
   }
   this.bufferBuilder.append(str);
 }
@@ -590,6 +520,82 @@ function utf8Length(str){
     return str.replace(/[^\u0000-\u007F]/g, _utf8Replace).length;
   }
 }
+
+},{"./bufferbuilder":2}],2:[function(require,module,exports){
+var binaryFeatures = {};
+binaryFeatures.useBlobBuilder = (function(){
+  try {
+    new Blob([]);
+    return false;
+  } catch (e) {
+    return true;
+  }
+})();
+
+binaryFeatures.useArrayBufferView = !binaryFeatures.useBlobBuilder && (function(){
+  try {
+    return (new Blob([new Uint8Array([])])).size === 0;
+  } catch (e) {
+    return true;
+  }
+})();
+
+module.exports.binaryFeatures = binaryFeatures;
+var BlobBuilder = module.exports.BlobBuilder;
+if (typeof window != 'undefined') {
+  BlobBuilder = module.exports.BlobBuilder = window.WebKitBlobBuilder ||
+    window.MozBlobBuilder || window.MSBlobBuilder || window.BlobBuilder;
+}
+
+function BufferBuilder(){
+  this._pieces = [];
+  this._parts = [];
+}
+
+BufferBuilder.prototype.append = function(data) {
+  if(typeof data === 'number') {
+    this._pieces.push(data);
+  } else {
+    this.flush();
+    this._parts.push(data);
+  }
+};
+
+BufferBuilder.prototype.flush = function() {
+  if (this._pieces.length > 0) {
+    var buf = new Uint8Array(this._pieces);
+    if(!binaryFeatures.useArrayBufferView) {
+      buf = buf.buffer;
+    }
+    this._parts.push(buf);
+    this._pieces = [];
+  }
+};
+
+BufferBuilder.prototype.getBuffer = function() {
+  this.flush();
+  if(binaryFeatures.useBlobBuilder) {
+    var builder = new BlobBuilder();
+    for(var i = 0, ii = this._parts.length; i < ii; i++) {
+      builder.append(this._parts[i]);
+    }
+    return builder.getBlob();
+  } else {
+    return new Blob(this._parts);
+  }
+};
+
+module.exports.BufferBuilder = BufferBuilder;
+
+},{}],3:[function(require,module,exports){
+var BufferBuilderExports = require('./bufferbuilder');
+
+window.BufferBuilder = BufferBuilderExports.BufferBuilder;
+window.binaryFeatures = BufferBuilderExports.binaryFeatures;
+window.BlobBuilder = BufferBuilderExports.BlobBuilder;
+window.BinaryPack = require('./binarypack');
+
+},{"./binarypack":1,"./bufferbuilder":2}]},{},[3]);
 /**
  * Light EventEmitter. Ported from Node.js/events.js
  * Eric Zhang
@@ -805,6 +811,7 @@ var util = {
   }(this))
 };
 
+exports.util = util;
 
 
 function Stream() {
@@ -897,6 +904,8 @@ Stream.prototype.pipe = function(dest, options) {
   // Allow for unix-like usage: A.pipe(B).pipe(C)
   return dest;
 };
+
+exports.Stream = Stream;
 function BlobReadStream(source, options){
   Stream.call(this);
   
@@ -1280,7 +1289,8 @@ BinaryStream.prototype.write = function(data) {
     var out = this._write(2, data, this.id);
     return !this.paused && out;
   } else {
-    throw new Error('Stream is not writable');
+    this.emit('error', new Error('Stream is not writable'));
+    return false;
   }
 };
 
diff --git a/dist/binary.min.js b/dist/binary.min.js
old mode 100644
new mode 100755
index 1887d21..6517381
--- a/dist/binary.min.js
+++ b/dist/binary.min.js
@@ -1 +1 @@
-/*! binary.min.js build:0.2.1, production. Copyright(c) 2012 Eric Zhang <eric@ericzhang.com> MIT Licensed */(function(e){function n(){this._pieces=[],this._parts=[]}function r(e){this.index=0,this.dataBuffer=e,this.dataView=new Uint8Array(this.dataBuffer),this.length=this.dataBuffer.byteLength}function i(){this.bufferBuilder=new n}function s(e){var t=e.charCodeAt(0);return t<=2047?"00":t<=65535?"000":t<=2097151?"0000":t<=67108863?"00000":"000000"}function o(e){return e.length>600?(new Blob([e])).size:e.replace(/[^\u0000-\u007F]/g,s).length}function u(){this._events={}}function l(){u.call(this)}function c(e,t){l.call(this),t=f.extend({readDelay:0,paused:!1},t),this._source=e,this._start=0,this._readChunkSize=t.chunkSize||e.size,this._readDelay=t.readDelay,this.readable=!0,this.paused=t.paused,this._read()}function h(e,t,n,r){if(!(this instanceof h))return new h(options);var i=this;l.call(this),this.id=t,this._socket=e,this.writable=!0,this.readable=!0,this.paused=!1,this._closed=!1,this._ended=!1,n&&this._write(1,r,this.id)}function p(e,t){if(!(this instanceof p))return new p(e,t);u.call(this);var n=this;this._options=f.extend({chunkSize:40960},t),this.streams={},typeof e=="string"?(this._nextId=0,this._socket=new WebSocket(e)):(this._nextId=1,this._socket=e),this._socket.binaryType="arraybuffer",this._socket.addEventListener("open",function(){n.emit("open")}),this._socket.addEventListener("error",function(e){var t=Object.keys(n.streams);for(var r=0,i=t.length;r<i;r++)n.streams[t[r]]._onError(e);n.emit("error",e)}),this._socket.addEventListener("close",function(e,t){var r=Object.keys(n.streams);for(var i=0,s=r.length;i<s;i++)n.streams[r[i]]._onClose();n.emit("close",e,t)}),this._socket.addEventListener("message",function(e,t){f.setZeroTimeout(function(){e=e.data;try{e=f.unpack(e)}catch(t){return n.emit("error",new Error("Received unparsable message: "+t))}if(!(e instanceof Array))return n.emit("error",new Error("Received non-array message"));if(e.length!=3)return n.emit("error",new Error("Received message with wrong part count: "+e.length));if("number"!=typeof e[0])return n.emit("error",new Error("Received message with non-number type: "+e[0]));switch(e[0]){case 0:break;case 1:var r=e[1],i=e[2],s=n._receiveStream(i);n.emit("stream",s,r);break;case 2:var o=e[1],i=e[2],s=n.streams[i];s?s._onData(o):n.emit("error",new Error("Received `data` message for unknown stream: "+i));break;case 3:var i=e[2],s=n.streams[i];s?s._onPause():n.emit("error",new Error("Received `pause` message for unknown stream: "+i));break;case 4:var i=e[2],s=n.streams[i];s?s._onResume():n.emit("error",new Error("Received `resume` message for unknown stream: "+i));break;case 5:var i=e[2],s=n.streams[i];s?s._onEnd():n.emit("error",new Error("Received `end` message for unknown stream: "+i));break;case 6:var i=e[2],s=n.streams[i];s?s._onClose():n.emit("error",new Error("Received `close` message for unknown stream: "+i));break;default:n.emit("error",new Error("Unrecognized message type received: "+e[0]))}})})}var t={};t.useBlobBuilder=function(){try{return new Blob([]),!1}catch(e){return!0}}(),t.useArrayBufferView=!t.useBlobBuilder&&function(){try{return(new Blob([new Uint8Array([])])).size===0}catch(e){return!0}}(),t.supportsBinaryWebsockets=function(){try{var e=new WebSocket("ws://null");return e.onerror=function(){},typeof e.binaryType!="undefined"?!0:!1}catch(t){return!1}}(),e.binaryFeatures=t,e.BlobBuilder=window.WebKitBlobBuilder||window.MozBlobBuilder||window.MSBlobBuilder||window.BlobBuilder,n.prototype.append=function(e){typeof e=="number"?this._pieces.push(e):(this.flush(),this._parts.push(e))},n.prototype.flush=function(){if(this._pieces.length>0){var e=new Uint8Array(this._pieces);t.useArrayBufferView||(e=e.buffer),this._parts.push(e),this._pieces=[]}},n.prototype.getBuffer=function(){this.flush();if(t.useBlobBuilder){var e=new BlobBuilder;for(var n=0,r=this._parts.length;n<r;n++)e.append(this._parts[n]);return e.getBlob()}return new Blob(this._parts)},e.BinaryPack={unpack:function(e){var t=new r(e);return t.unpack()},pack:function(e){var t=new i;t.pack(e);var n=t.getBuffer();return n}},r.prototype.unpack=function(){var e=this.unpack_uint8();if(e<128){var t=e;return t}if((e^224)<32){var n=(e^224)-32;return n}var r;if((r=e^160)<=15)return this.unpack_raw(r);if((r=e^176)<=15)return this.unpack_string(r);if((r=e^144)<=15)return this.unpack_array(r);if((r=e^128)<=15)return this.unpack_map(r);switch(e){case 192:return null;case 193:return undefined;case 194:return!1;case 195:return!0;case 202:return this.unpack_float();case 203:return this.unpack_double();case 204:return this.unpack_uint8();case 205:return this.unpack_uint16();case 206:return this.unpack_uint32();case 207:return this.unpack_uint64();case 208:return this.unpack_int8();case 209:return this.unpack_int16();case 210:return this.unpack_int32();case 211:return this.unpack_int64();case 212:return undefined;case 213:return undefined;case 214:return undefined;case 215:return undefined;case 216:return r=this.unpack_uint16(),this.unpack_string(r);case 217:return r=this.unpack_uint32(),this.unpack_string(r);case 218:return r=this.unpack_uint16(),this.unpack_raw(r);case 219:return r=this.unpack_uint32(),this.unpack_raw(r);case 220:return r=this.unpack_uint16(),this.unpack_array(r);case 221:return r=this.unpack_uint32(),this.unpack_array(r);case 222:return r=this.unpack_uint16(),this.unpack_map(r);case 223:return r=this.unpack_uint32(),this.unpack_map(r)}},r.prototype.unpack_uint8=function(){var e=this.dataView[this.index]&255;return this.index++,e},r.prototype.unpack_uint16=function(){var e=this.read(2),t=(e[0]&255)*256+(e[1]&255);return this.index+=2,t},r.prototype.unpack_uint32=function(){var e=this.read(4),t=((e[0]*256+e[1])*256+e[2])*256+e[3];return this.index+=4,t},r.prototype.unpack_uint64=function(){var e=this.read(8),t=((((((e[0]*256+e[1])*256+e[2])*256+e[3])*256+e[4])*256+e[5])*256+e[6])*256+e[7];return this.index+=8,t},r.prototype.unpack_int8=function(){var e=this.unpack_uint8();return e<128?e:e-256},r.prototype.unpack_int16=function(){var e=this.unpack_uint16();return e<32768?e:e-65536},r.prototype.unpack_int32=function(){var e=this.unpack_uint32();return e<Math.pow(2,31)?e:e-Math.pow(2,32)},r.prototype.unpack_int64=function(){var e=this.unpack_uint64();return e<Math.pow(2,63)?e:e-Math.pow(2,64)},r.prototype.unpack_raw=function(e){if(this.length<this.index+e)throw new Error("BinaryPackFailure: index is out of range "+this.index+" "+e+" "+this.length);var t=this.dataBuffer.slice(this.index,this.index+e);return this.index+=e,t},r.prototype.unpack_string=function(e){var t=this.read(e),n=0,r="",i,s;while(n<e)i=t[n],i<128?(r+=String.fromCharCode(i),n++):(i^192)<32?(s=(i^192)<<6|t[n+1]&63,r+=String.fromCharCode(s),n+=2):(s=(i&15)<<12|(t[n+1]&63)<<6|t[n+2]&63,r+=String.fromCharCode(s),n+=3);return this.index+=e,r},r.prototype.unpack_array=function(e){var t=new Array(e);for(var n=0;n<e;n++)t[n]=this.unpack();return t},r.prototype.unpack_map=function(e){var t={};for(var n=0;n<e;n++){var r=this.unpack(),i=this.unpack();t[r]=i}return t},r.prototype.unpack_float=function(){var e=this.unpack_uint32(),t=e>>31,n=(e>>23&255)-127,r=e&8388607|8388608;return(t==0?1:-1)*r*Math.pow(2,n-23)},r.prototype.unpack_double=function(){var e=this.unpack_uint32(),t=this.unpack_uint32(),n=e>>31,r=(e>>20&2047)-1023,i=e&1048575|1048576,s=i*Math.pow(2,r-20)+t*Math.pow(2,r-52);return(n==0?1:-1)*s},r.prototype.read=function(e){var t=this.index;if(t+e<=this.length)return this.dataView.subarray(t,t+e);throw new Error("BinaryPackFailure: read index out of range")},i.prototype.getBuffer=function(){return this.bufferBuilder.getBuffer()},i.prototype.pack=function(e){var n=typeof e;if(n=="string")this.pack_string(e);else if(n=="number")Math.floor(e)===e?this.pack_integer(e):this.pack_double(e);else if(n=="boolean")e===!0?this.bufferBuilder.append(195):e===!1&&this.bufferBuilder.append(194);else if(n=="undefined")this.bufferBuilder.append(192);else{if(n!="object")throw new Error('Type "'+n+'" not yet supported');if(e===null)this.bufferBuilder.append(192);else{var r=e.constructor;if(r==Array)this.pack_array(e);else if(r==Blob||r==File)this.pack_bin(e);else if(r==ArrayBuffer)t.useArrayBufferView?this.pack_bin(new Uint8Array(e)):this.pack_bin(e);else if("BYTES_PER_ELEMENT"in e)t.useArrayBufferView?this.pack_bin(new Uint8Array(e.buffer)):this.pack_bin(e.buffer);else if(r==Object)this.pack_object(e);else if(r==Date)this.pack_string(e.toString());else{if(typeof e.toBinaryPack!="function")throw new Error('Type "'+r.toString()+'" not yet supported');this.bufferBuilder.append(e.toBinaryPack())}}}this.bufferBuilder.flush()},i.prototype.pack_bin=function(e){var t=e.length||e.byteLength||e.size;if(t<=15)this.pack_uint8(160+t);else if(t<=65535)this.bufferBuilder.append(218),this.pack_uint16(t);else{if(!(t<=4294967295))throw new Error("Invalid length");this.bufferBuilder.append(219),this.pack_uint32(t)}this.bufferBuilder.append(e)},i.prototype.pack_string=function(e){var t=o(e);if(t<=15)this.pack_uint8(176+t);else if(t<=65535)this.bufferBuilder.append(216),this.pack_uint16(t);else{if(!(t<=4294967295))throw new Error("Invalid length");this.bufferBuilder.append(217),this.pack_uint32(t)}this.bufferBuilder.append(e)},i.prototype.pack_array=function(e){var t=e.length;if(t<=15)this.pack_uint8(144+t);else if(t<=65535)this.bufferBuilder.append(220),this.pack_uint16(t);else{if(!(t<=4294967295))throw new Error("Invalid length");this.bufferBuilder.append(221),this.pack_uint32(t)}for(var n=0;n<t;n++)this.pack(e[n])},i.prototype.pack_integer=function(e){if(-32<=e&&e<=127)this.bufferBuilder.append(e&255);else if(0<=e&&e<=255)this.bufferBuilder.append(204),this.pack_uint8(e);else if(-128<=e&&e<=127)this.bufferBuilder.append(208),this.pack_int8(e);else if(0<=e&&e<=65535)this.bufferBuilder.append(205),this.pack_uint16(e);else if(-32768<=e&&e<=32767)this.bufferBuilder.append(209),this.pack_int16(e);else if(0<=e&&e<=4294967295)this.bufferBuilder.append(206),this.pack_uint32(e);else if(-2147483648<=e&&e<=2147483647)this.bufferBuilder.append(210),this.pack_int32(e);else if(-0x8000000000000000<=e&&e<=0x8000000000000000)this.bufferBuilder.append(211),this.pack_int64(e);else{if(!(0<=e&&e<=0x10000000000000000))throw new Error("Invalid integer");this.bufferBuilder.append(207),this.pack_uint64(e)}},i.prototype.pack_double=function(e){var t=0;e<0&&(t=1,e=-e);var n=Math.floor(Math.log(e)/Math.LN2),r=e/Math.pow(2,n)-1,i=Math.floor(r*Math.pow(2,52)),s=Math.pow(2,32),o=t<<31|n+1023<<20|i/s&1048575,u=i%s;this.bufferBuilder.append(203),this.pack_int32(o),this.pack_int32(u)},i.prototype.pack_object=function(e){var t=Object.keys(e),n=t.length;if(n<=15)this.pack_uint8(128+n);else if(n<=65535)this.bufferBuilder.append(222),this.pack_uint16(n);else{if(!(n<=4294967295))throw new Error("Invalid length");this.bufferBuilder.append(223),this.pack_uint32(n)}for(var r in e)e.hasOwnProperty(r)&&(this.pack(r),this.pack(e[r]))},i.prototype.pack_uint8=function(e){this.bufferBuilder.append(e)},i.prototype.pack_uint16=function(e){this.bufferBuilder.append(e>>8),this.bufferBuilder.append(e&255)},i.prototype.pack_uint32=function(e){var t=e&4294967295;this.bufferBuilder.append((t&4278190080)>>>24),this.bufferBuilder.append((t&16711680)>>>16),this.bufferBuilder.append((t&65280)>>>8),this.bufferBuilder.append(t&255)},i.prototype.pack_uint64=function(e){var t=e/Math.pow(2,32),n=e%Math.pow(2,32);this.bufferBuilder.append((t&4278190080)>>>24),this.bufferBuilder.append((t&16711680)>>>16),this.bufferBuilder.append((t&65280)>>>8),this.bufferBuilder.append(t&255),this.bufferBuilder.append((n&4278190080)>>>24),this.bufferBuilder.append((n&16711680)>>>16),this.bufferBuilder.append((n&65280)>>>8),this.bufferBuilder.append(n&255)},i.prototype.pack_int8=function(e){this.bufferBuilder.append(e&255)},i.prototype.pack_int16=function(e){this.bufferBuilder.append((e&65280)>>8),this.bufferBuilder.append(e&255)},i.prototype.pack_int32=function(e){this.bufferBuilder.append(e>>>24&255),this.bufferBuilder.append((e&16711680)>>>16),this.bufferBuilder.append((e&65280)>>>8),this.bufferBuilder.append(e&255)},i.prototype.pack_int64=function(e){var 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e)e.hasOwnProperty(r)&&(this.pack(r),this.pack(e[r]))},u.prototype.pack_uint8=function(e){this.bufferBuilder.append(e)},u.prototype.pack_uint16=function(e){this.bufferBuilder.append(e>>8),this.bufferBuilder.append(e&255)},u.prototype.pack_uint32=function(e){var t=e&4294967295;this.bufferBuilder.append((t&4278190080)>>>24),this.bufferBuilder.append((t&16711680)>>>16),this.bufferBuilder.append((t&65280)>>>8),this.bufferBuilder.append(t&255)},u.prototype.pack_uint64=function(e){var t=e/Math.pow(2,32),n=e%Math.pow(2,32);this.bufferBuilder.append((t&4278190080)>>>24),this.bufferBuilder.append((t&16711680)>>>16),this.bufferBuilder.append((t&65280)>>>8),this.bufferBuilder.append(t&255),this.bufferBuilder.append((n&4278190080)>>>24),this.bufferBuilder.append((n&16711680)>>>16),this.bufferBuilder.append((n&65280)>>>8),this.bufferBuilder.append(n&255)},u.prototype.pack_int8=function(e){this.bufferBuilder.append(e&255)},u.prototype.pack_int16=function(e){this.bufferBuilder.append((e&65280)>>8),this.bufferBuilder.append(e&255)},u.prototype.pack_int32=function(e){this.bufferBuilder.append(e>>>24&255),this.bufferBuilder.append((e&16711680)>>>16),this.bufferBuilder.append((e&65280)>>>8),this.bufferBuilder.append(e&255)},u.prototype.pack_int64=function(e){var t=Math.floor(e/Math.pow(2,32)),n=e%Math.pow(2,32);this.bufferBuilder.append((t&4278190080)>>>24),this.bufferBuilder.append((t&16711680)>>>16),this.bufferBuilder.append((t&65280)>>>8),this.bufferBuilder.append(t&255),this.bufferBuilder.append((n&4278190080)>>>24),this.bufferBuilder.append((n&16711680)>>>16),this.bufferBuilder.append((n&65280)>>>8),this.bufferBuilder.append(n&255)}},{"./bufferbuilder":2}],2:[function(e,t,n){function s(){this._pieces=[],this._parts=[]}var r={};r.useBlobBuilder=function(){try{return new Blob([]),!1}catch(e){return!0}}(),r.useArrayBufferView=!r.useBlobBuilder&&function(){try{return(new Blob([new Uint8Array([])])).size===0}catch(e){return!0}}(),t.exports.binaryFeatures=r;var i=t.exports.BlobBuilder;typeof window!="undefined"&&(i=t.exports.BlobBuilder=window.WebKitBlobBuilder||window.MozBlobBuilder||window.MSBlobBuilder||window.BlobBuilder),s.prototype.append=function(e){typeof e=="number"?this._pieces.push(e):(this.flush(),this._parts.push(e))},s.prototype.flush=function(){if(this._pieces.length>0){var e=new Uint8Array(this._pieces);r.useArrayBufferView||(e=e.buffer),this._parts.push(e),this._pieces=[]}},s.prototype.getBuffer=function(){this.flush();if(r.useBlobBuilder){var e=new i;for(var t=0,n=this._parts.length;t<n;t++)e.append(this._parts[t]);return e.getBlob()}return new Blob(this._parts)},t.exports.BufferBuilder=s},{}],3:[function(e,t,n){var r=e("./bufferbuilder");window.BufferBuilder=r.BufferBuilder,window.binaryFeatures=r.binaryFeatures,window.BlobBuilder=r.BlobBuilder,window.BinaryPack=e("./binarypack")},{"./binarypack":1,"./bufferbuilder":2}]},{},[3]);var n=Array.isArray;t.prototype.addListener=function(e,t,r,i){if("function"!=typeof t)throw new Error("addListener only takes instances of Function");this.emit("newListener",e,typeof t.listener=="function"?t.listener:t),this._events[e]?n(this._events[e])?this._events[e].push(t):this._events[e]=[this._events[e],t]:this._events[e]=t},t.prototype.on=t.prototype.addListener,t.prototype.once=function(e,t,n){function i(){r.removeListener(e,i),t.apply(this,arguments)}if("function"!=typeof t)throw new Error(".once only takes instances of Function");var r=this;return i.listener=t,r.on(e,i),this},t.prototype.removeListener=function(e,t,r){if("function"!=typeof t)throw new Error("removeListener only takes instances of Function");if(!this._events[e])return this;var i=this._events[e];if(n(i)){var s=-1;for(var o=0,u=i.length;o<u;o++)if(i[o]===t||i[o].listener&&i[o].listener===t){s=o;break}if(s<0)return this;i.splice(s,1),i.length==0&&delete this._events[e]}else(i===t||i.listener&&i.listener===t)&&delete this._events[e];return this},t.prototype.off=t.prototype.removeListener,t.prototype.removeAllListeners=function(e){return arguments.length===0?(this._events={},this):(e&&this._events&&this._events[e]&&(this._events[e]=null),this)},t.prototype.listeners=function(e){return this._events[e]||(this._events[e]=[]),n(this._events[e])||(this._events[e]=[this._events[e]]),this._events[e]},t.prototype.emit=function(e){var e=arguments[0],t=this._events[e];if(!t)return!1;if(typeof t=="function"){switch(arguments.length){case 1:t.call(this);break;case 2:t.call(this,arguments[1]);break;case 3:t.call(this,arguments[1],arguments[2]);break;default:var r=arguments.length,i=new Array(r-1);for(var s=1;s<r;s++)i[s-1]=arguments[s];t.apply(this,i)}return!0}if(n(t)){var r=arguments.length,i=new Array(r-1);for(var s=1;s<r;s++)i[s-1]=arguments[s];var o=t.slice();for(var s=0,r=o.length;s<r;s++)o[s].apply(this,i);return!0}return!1};var r={inherits:function(e,t){e.super_=t,e.prototype=Object.create(t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}})},extend:function(e,t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);return e},pack:BinaryPack.pack,unpack:BinaryPack.unpack,setZeroTimeout:function(e){function r(r){t.push(r),e.postMessage(n,"*")}function i(r){r.source==e&&r.data==n&&(r.stopPropagation&&r.stopPropagation(),t.length&&t.shift()())}var t=[],n="zero-timeout-message";return e.addEventListener?e.addEventListener("message",i,!0):e.attachEvent&&e.attachEvent("onmessage",i),r}(this)};e.util=r,r.inherits(i,t),i.prototype.pipe=function(e,t){function r(t){e.writable&&!1===e.write(t)&&n.pause&&n.pause()}function i(){n.readable&&n.resume&&n.resume()}function o(){if(s)return;s=!0,e.end()}function u(){if(s)return;s=!0,e.destroy()}function a(e){f();if(this.listeners("error").length===0)throw e}function f(){n.removeListener("data",r),e.removeListener("drain",i),n.removeListener("end",o),n.removeListener("close",u),n.removeListener("error",a),e.removeListener("error",a),n.removeListener("end",f),n.removeListener("close",f),e.removeListener("end",f),e.removeListener("close",f)}var n=this;n.on("data",r),e.on("drain",i),!e._isStdio&&(!t||t.end!==!1)&&(n.on("end",o),n.on("close",u));var s=!1;return n.on("error",a),e.on("error",a),n.on("end",f),n.on("close",f),e.on("end",f),e.on("close",f),e.emit("pipe",n),e},e.Stream=i,r.inherits(s,i),s.prototype.pause=function(){this.paused=!0},s.prototype.resume=function(){this.paused=!1,this._read()},s.prototype.destroy=function(){this.readable=!1,clearTimeout(this._timeoutId)},s.prototype._read=function(){function t(){e._emitReadChunk()}var e=this,n=this._readDelay;n!==0?this._timeoutId=setTimeout(t,n):r.setZeroTimeout(t)},s.prototype._emitReadChunk=function(){if(this.paused||!this.readable)return;var e=Math.min(this._source.size-this._start,this._readChunkSize);if(e===0){this.readable=!1,this.emit("end");return}var t=this._start+e,n=(this._source.slice||this._source.webkitSlice||this._source.mozSlice).call(this._source,this._start,t);this._start=t,this._read(),this.emit("data",n)},e.BlobReadStream=s,r.inherits(o,i),o.prototype._onDrain=function(){this.paused||this.emit("drain")},o.prototype._onClose=function(){if(this._closed)return;this.readable=!1,this.writable=!1,this._closed=!0,this.emit("close")},o.prototype._onError=function(e){this.readable=!1,this.writable=!1,this.emit("error",e)},o.prototype._onPause=function(){this.paused=!0,this.emit("pause")},o.prototype._onResume=function(){this.paused=!1,this.emit("resume"),this.emit("drain")},o.prototype._write=function(e,t,n){if(this._socket.readyState!==this._socket.constructor.OPEN)return!1;var i=r.pack([e,t,n]);return this._socket.send(i)!==!1},o.prototype.write=function(e){if(this.writable){var t=this._write(2,e,this.id);return!this.paused&&t}return this.emit("error",new Error("Stream is not writable")),!1},o.prototype.end=function(){this._ended=!0,this.readable=!1,this._write(5,null,this.id)},o.prototype.destroy=o.prototype.destroySoon=function(){this._onClose(),this._write(6,null,this.id)},o.prototype._onEnd=function(){if(this._ended)return;this._ended=!0,this.readable=!1,this.emit("end")},o.prototype._onData=function(e){this.emit("data",e)},o.prototype.pause=function(){this._onPause(),this._write(3,null,this.id)},o.prototype.resume=function(){this._onResume(),this._write(4,null,this.id)},r.inherits(u,t),u.prototype.send=function(e,t){var n=this.createStream(t);if(e instanceof i)e.pipe(n);else if(r.isNode===!0)Buffer.isBuffer(e)?(new BufferReadStream(e,{chunkSize:this._options.chunkSize})).pipe(n):n.write(e);else if(r.isNode!==!0)if(e.constructor==Blob||e.constructor==File)(new s(e,{chunkSize:this._options.chunkSize})).pipe(n);else if(e.constructor==ArrayBuffer){var o;binaryFeatures.useArrayBufferView&&(e=new Uint8Array(e));if(binaryFeatures.useBlobBuilder){var u=new BlobBuilder;u.append(e),o=u.getBlob()}else o=new Blob([e]);(new s(o,{chunkSize:this._options.chunkSize})).pipe(n)}else if(typeof e=="object"&&"BYTES_PER_ELEMENT"in e){var o;binaryFeatures.useArrayBufferView||(e=e.buffer);if(binaryFeatures.useBlobBuilder){var u=new BlobBuilder;u.append(e),o=u.getBlob()}else o=new Blob([e]);(new s(o,{chunkSize:this._options.chunkSize})).pipe(n)}else n.write(e);return n},u.prototype._receiveStream=function(e){var t=this,n=new o(this._socket,e,!1);return n.on("close",function(){delete t.streams[e]}),this.streams[e]=n,n},u.prototype.createStream=function(e){if(this._socket.readyState!==WebSocket.OPEN)throw new Error("Client is not yet connected or has closed");var t=this,n=this._nextId;this._nextId+=2;var r=new o(this._socket,n,!0,e);return r.on("close",function(){delete t.streams[n]}),this.streams[n]=r,r},u.prototype.close=u.prototype.destroy=function(){this._socket.close()},e.BinaryClient=u})(this)
\ No newline at end of file
diff --git a/lib/client.js b/lib/client.js
index d621b76..5b25746 100644
--- a/lib/client.js
+++ b/lib/client.js
@@ -2,7 +2,7 @@
 var Stream = require('stream').Stream;
 var EventEmitter = require('events').EventEmitter;
 var BufferReadStream = require('streamers').BufferReadStream;
-var WebSocket = require('streamws');
+var WebSocket = require('ws');
 
 var util = require('./util');
 var BinaryStream = require('./stream').BinaryStream;
@@ -36,6 +36,12 @@ function BinaryClient(socket, options) {
   this._socket.addEventListener('open', function(){
     self.emit('open');
   });
+  this._socket.addEventListener('ping', function(data, flags){
+    self.emit('ping', data, flags);
+  });
+  this._socket.addEventListener('pong', function(data, flags){
+    self.emit('pong', data, flags);
+  });
   // if node
   this._socket.on('drain', function(){
     var ids = Object.keys(self.streams);
@@ -90,7 +96,13 @@ function BinaryClient(socket, options) {
       //
       // Close
       // [ 6  , null , streamId ]
-      // 
+      //
+      // 7
+      // [ 7  , Notification , streamId ]
+      //
+      // 8
+      // [ 8  , Message ]
+      //
       
       data = data.data;
       
@@ -162,6 +174,20 @@ function BinaryClient(socket, options) {
             self.emit('error', new Error('Received `close` message for unknown stream: ' + streamId));
           }
           break;
+        case 7:
+          var streamId = data[2];
+          var binaryStream = self.streams[streamId];
+          if(binaryStream) {
+            var event = data[1];
+            binaryStream._onNotification(event);
+          } else {
+            self.emit('error', new Error('Received `notification` message for unknown stream: ' + streamId));
+          }
+          break;
+        case 8:
+          var message = data[1];          
+          self.emit('message', message);    
+          break;
         default:
           self.emit('error', new Error('Unrecognized message type received: ' + data[0]));
       }
@@ -171,6 +197,19 @@ function BinaryClient(socket, options) {
 
 util.inherits(BinaryClient, EventEmitter);
 
+BinaryClient.prototype.ping = function(data){
+  return this._socket.ping(data, {}, true);
+}
+
+BinaryClient.prototype.pong = function(data){
+  return this._socket.pong(data, {}, true);
+}
+
+BinaryClient.prototype.sendMessage = function(message){
+  var data = util.pack([8, message, 0]);
+  return this._socket.send(data, {binary: true});
+}
+
 BinaryClient.prototype.send = function(data, meta){
   var stream = this.createStream(meta);
   if(data instanceof Stream) {
diff --git a/lib/client/stream.js b/lib/client/stream.js
index 0c3ba3d..ed73667 100644
--- a/lib/client/stream.js
+++ b/lib/client/stream.js
@@ -90,3 +90,5 @@ Stream.prototype.pipe = function(dest, options) {
   // Allow for unix-like usage: A.pipe(B).pipe(C)
   return dest;
 };
+
+exports.Stream = Stream;
diff --git a/lib/server.js b/lib/server.js
index f02d1c4..45e1f65 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -1,4 +1,4 @@
-var ws = require('streamws');
+var ws = require('ws');
 var EventEmitter = require('events').EventEmitter;
 var util = require('./util');
 
diff --git a/lib/stream.js b/lib/stream.js
index 7e42028..bf5111d 100644
--- a/lib/stream.js
+++ b/lib/stream.js
@@ -73,7 +73,7 @@ BinaryStream.prototype._write = function(code, data, bonus) {
     return false;
   }
   var message = util.pack([code, data, bonus]);
-  return this._socket.send(message) !== false;
+  return this._socket.send(message, {binary: true}) !== false;
 };
 
 BinaryStream.prototype.write = function(data) {
@@ -81,7 +81,8 @@ BinaryStream.prototype.write = function(data) {
     var out = this._write(2, data, this.id);
     return !this.paused && out;
   } else {
-    throw new Error('Stream is not writable');
+    this.emit('error', new Error('Stream is not writable'));
+    return false;
   }
 };
 
@@ -113,6 +114,14 @@ BinaryStream.prototype._onData = function(data) {
   this.emit('data', data);
 };
 
+BinaryStream.prototype._onNotification = function(event) {
+  this.emit('notify', event);
+};
+
+BinaryStream.prototype.sendNotification = function(event) {
+  this._write(7, event, this.id);
+};
+
 BinaryStream.prototype.pause = function() {
   this._onPause();
   this._write(3, null, this.id);
diff --git a/lib/util.js b/lib/util.js
index 42388d6..e833015 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -63,6 +63,7 @@ var util = {
   }(this))
 };
 
+exports.util = util;
 // if node
 module.exports = util;
 // end node
diff --git a/package.json b/package.json
old mode 100644
new mode 100755
index 5afb6a4..fd14dec
--- a/package.json
+++ b/package.json
@@ -2,21 +2,17 @@
   "author": "Eric Zhang (http://ericzhang.com)",
   "name": "binaryjs",
   "description": "Binary realtime streaming made easy",
-  "version": "0.2.1",
+  "version": "0.2.3",
   "homepage": "http://binaryjs.com",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/binaryjs/binaryjs.git"
-  },
   "main": "lib/server.js",
   "scripts": {
     "test": "make test"
   },
   "engines": {
-    "node": ">=0.6.0"
+    "node": ">=0.10.20"
   },
   "dependencies": {
-    "streamws": ">=0.1.1",
+    "ws": "git://github.com/carck/ws.git#0.8.1",
     "binarypack": ">=0.0.4",
     "streamers": ">=0.1.0"
   },
diff --git a/test/client.js b/test/client.js
old mode 100644
new mode 100755
index 2d13b24..449336b
--- a/test/client.js
+++ b/test/client.js
@@ -37,6 +37,21 @@ describe('BinaryClient', function(){
         client.createStream();
       });
     });
+    it('should receive notification', function(done){
+      server.on('connection', function(client){
+        client.on('stream', function(stream){
+            stream.sendNotification("ready");
+        });
+      });
+      var client = new BinaryClient(serverUrl);
+      client.on('open', function(){
+        client.createStream().on('notify', function(event){
+          if('ready' === event) {
+            done();
+          }
+        });
+      });
+    });
   });
   
   describe('sending data', function(){