First commit of VertexInfo module.
Added several variables to the Candidate and Cluster classes relating to VBF
efficiency/purity.
Added the VertexInfo module.
Added several leaves to the Cluster branch relating to VBF efficiency/purity.
Added the VertexInfo module and changed all the muon efficiencies to one.
Merge branch 'master' of https://github.com/aehart/Delphes

Conflicts:
	modules/TreeWriter.cc
Version of vbfHTo4mu scripts which is fully compiled as a standalone
executable.
Added scripts to the set of directories whose contents are compiled into
standalone executables.