setup environment to be more modern; tweak Makefile; convert to CircleCI - #308

Would it be possible to add py3.5 to the tests? Currently only testing against 2.7.10.

yes, will be adding them once I get everything looked at and +1'd from you for these changes

Looks good to me! The base commit from master is back a ways, but I assume that won't be a problem once merged.

Reviewed 13 of 13 files at r1.
Review status: all files reviewed at latest revision, all discussions resolved, some commit checks failed.

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nope, the master differences was me forgetting to merge forward :)

merged with master and tweaked those things you had fixed that I broke (again) - thanks!

@jeremylow I think I have covered the master merge issues and this should be ready to merge

Good to go from me.

Review status: 8 of 14 files reviewed at latest revision, all discussions resolved.

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Reviewed 4 of 4 files at r2, 2 of 3 files at r3.
Review status: all files reviewed at latest revision, all discussions resolved.

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\o/ thanks!