RELEASE STC V5.0!

Made cregex docs example online.

Merge pull request stclib#48 from tylov/dev411

Release V4.1.1

Fairly large update before release 4.1, cleaning up docs and some min…

…or additions.

API change in c_forrange() when more than 2 arguments.

VERSION 3.8 RC. Added cregex with "final" API + docs. README.md updat…

…ed with links to cregex, coption.

crandom.h: fixed "stc64_with_seq doesn't use seq argument stclib#31" thanks to funny-falcon. Removed deprecated funcs.
Added tags for v3.6 and v3.7.

VERSION 3.7

VERSION 3.6

Final cstr_str() docs update..

Merge pull request stclib#21 from tylov/keyval

Version 3.5 RC