Bump version for release 1.4.4

Merge pull request #44 from NETWAYS/release_1.4.3

Bump version to 1.4.3

Change main version to 1.4.2 (#40)

Co-authored-by: Lorenz Kästle <lorenz.kaestle@netways.de>

Properly check for availability of DES and improve build toolchain (#31)

* Fix testing for availability of DES
* Remove configure file, it should be in git anyway
* Update autoconf stuff
* Change Makefile.am to fix make dist
* Add bugfix version to version string and increase version

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