0.6
 - Added --force-bottle to autobrew installer
 - Use nonblocking socket in ssl to support timeout and interrupt
 - Fix UBSAN problem in ssl.c
 - Fix ASAN problem in hash.c

0.5
 - Major overhaul, add encryption, signature, cert stuff
 - Upgrade libssl and libcrypto on windows to 1.0.2d

0.4
 - Added base64 functions
