improved robustness of tail-fit macro
- added tail fits for tautau channel
- updated tail fit parameters
- improved robustness of tail fit function against pathological cases with large shift "Up"/"Down" uncertainties of tail fit parameters
- fixed typo in setup/tt/cgs-mssm-8TeV-XX.conf files concerning name of tautau categories with tau Pt binning
- added options to tailfit script that allows to keep using "old" tailfit function in MSSM H -> tautau analysis (for backwards compatibility of ee, mumu, emu channels and 7 TeV datacards)
- added protection against overestimated fit parameter uncertainties to tailfit macro
- updated tail fit parameters in doMSSM_taupt.py script
Merge pull request #376 from veelken/tailFitFix_2014Apr15

Tail fit fix 2014 apr15