Update the MSVC 2012 project to match the new DLL setup
Merge pull request #137 from TTimo/master

Fix MSVC 2012
Added NULL pointer check to s_get_interface
Merge pull request #138 from jpulver/master

Fixed crash (NULL pointer) in zbeacon/s_get_interface
Adjust the library paths for x64 builds to look in libzmq\lib\x64 first

Fallback on x64 is still libzmq\lib
Merge pull request #139 from vortechs2000/cleanup_dll_paths

Adjust the library paths for x64 builds to look in libzmq\lib\x64 first