mingw32 build against latest libzmq
Visual Studio has a define for bool - http://msdn.microsoft.com/en-us/library/tf4dy80a.aspx
Visual Studio 2012 conversion
change zhash_lookup to return char* maybe?
fix paths, add/remove files
provide a type for mode_t on Windows
MSVC only supports C89, which requires variables declared at the beginning of a block
fixing library paths and dependencies