Fixed casts and strcasecmp for MSVC
Added test case for zhash_autofree
Merge pull request #225 from hintjens/master

Fixed casts and strcasecmp for MSVC
Added support for ZMQ_ZAP_DOMAIN option setting
Merge pull request #226 from hintjens/master

Added support for ZMQ_ZAP_DOMAIN option setting
Merge https://github.com/zeromq/czmq