backport classes cleanup and speedup
backport of tau-decay bug fix and exotica tuning
added forgotten new files
enable HF SL
disable HF SL because new SL not yet in IB
cleanup
use correct SL file
revert back GFlash as a default
Merge pull request #5146 from civanch/tau-decay-bug-exotica

Backport of tau-decay bug fix and exotica tuning
Merge pull request #4673 from civanch/particle_charge_71

Backport classes cleanup and speedup
Merge remote branch 'origin/CMSSW_7_1_X' into CMSSW_7_0_X