Update to support new toolkit functionality with CMake and VS11 for XP as a target platform.
Merge pull request #87 from steve-o/master

Add support for vc110_xp in CMake build environment
release critical section on failure to create signaler fdpair
set SO_LINGER on first signaler socket to close in order to avoid
TIME_WAIT state.
Backported #84 and #532
Merge pull request #88 from hintjens/master

Backported two fixes
Added support for Travis CI
Merge pull request #89 from hintjens/master

Adding support for Travis CI
Fixed name of Travis file
Merge pull request #90 from hintjens/master

Fixed name of Travis file
Backported test_connect_delay.cpp from libzmq
Merge pull request #91 from hintjens/master

test_connect_delay was failing, so I backported the code from libzmq master.
Fix a few invalid forward declarations

A few forward declarations use mismatched struct and class types. Clang
won't compile this with -Werror.
Merge pull request #93 from cjuniet/master

[LIBZMQ-543] Fix compilation errors with Clang
Merge pull request #7 from zeromq/master

update code