Updates to python/gui/*.py files, src/WCPlanes.cc, and include/Util.h

New features to the gui are primarily for the 3d event display: table positions, ecal hits, and multiple WC hits are now incorporated. New options include the ability to hide the wire chambers, to hide the shashlik cells that are at the pedestal, and no snapping of the perspective from event to event. Also, the data/test.root file has been updated to contain a proton run tree with table positions.