Fix memory leaks
Merge pull request #382 from HughPowell/master

Fix memory leaks
Fix zlist_dup
Merge pull request #383 from HughPowell/master

Fix zlist_dup
Add zlist_freefn
Merge pull request #384 from HughPowell/master

Add zlist_freefn
Added CZMQ bindings
Fixed issue #377
Added zsocket_sendmem back to API
Improved zauth verbose output
Fix typo in comment
Merge pull request #386 from hurtonm/master

Fix typo in comment
Fixed issue #385
Merge pull request #378 from hintjens/master

Fixed issue #377
Added const to char * args where possible
Merge pull request #388 from hintjens/master

Added const to char * args where possible
implemented zprotocol - needs test
added test for zprotocol
Merge pull request #389 from sappo/master

zprotocol - simple protocol/api
Rebuilt man pages