Add in detection for VS2012, VS2013, and  VS2014.
Update to boost 1.56 and zmq 3.X.

We need a newer version of boost to have support for VS2013/VS2014, and zmq
2.X is now really, really old.
Switch to custom zmq fork to handle ninja generator.
Update the FindZMQ module to find window official releases.
Handle ZMQ releases where we don't have both release and debug libraries
Merge branch 'update_superbuild' into superbuild