Merge pull request #221 from hintjens/master

Set default HWM for pipes to 1,000 as before
Merge pull request #222 from hintjens/master

Added zsocket_unbind for completeness
Add unbind test
Merge pull request #223 from felipecruz/feature/test_zsocket_unbind

Add unbind test
Merge pull request #225 from hintjens/master

Fixed casts and strcasecmp for MSVC
Merge pull request #226 from hintjens/master

Added support for ZMQ_ZAP_DOMAIN option setting
Support separate lib and include install directories for libzmq.

Added --with-libzmq-include-dir and --with-libzmq-lib-dir configure options.
If --with-libzmq is set, both CFLAGS and LDFLAGS are set using that prefix.
If --with-libzmq-include-dir or --with-libzmq-lib-dir are set, the CFLAGS
and LDFLAGS are set using those prefixes, respectively.  The new configure
options override --with-libzmq, if set.
Merge pull request #227 from patricknoffke/master

Support separate lib and include install directories for libzmq.
Merge pull request #228 from hintjens/master

Minor fixes to project packaging
Merge pull request #229 from hintjens/master

Added support for setting binary Curve keys
Merge pull request #230 from hintjens/master

Changes for release 2.0.0, to support ZMQ/4.x and security
Finished authentication support in CZMQ (first draft)

* Does not yet support multiple domains
* Adds zcertstore class for managing certificate stores
Show ALLOWED/DENIED outcomes if verbose is set
Simplified white/blacklisting

* Configure via API rather than external file
Added CURVE_ALLOW_ANY to permit anonymous clients over CURVE
unbind/bind test has timing issues