update some histogram definitions
create individual classes for each category
categories are now defined as classes derived from HToTaumuTauh
fix some bugs in categorization and tauPt calculation
added different signal definitions for different analysts
Bastian's analyses: switch PUWeights, use MVAMetMuTau
adapted to new Ntuple producton 2014_Mar_20
Merge Bastian's branch 'develop' into 'master'
Revert "added different signal definitions for different analysts"

This reverts commit 45c1f6033f6c8d3eddb75252ae793a3bb677f3d0.
minor change to synchExercise comparison script