Add wzNorm, zzNorm and signalNorm uncertainties for ltt
Merge pull request #242 from roger-wolf/master

a few more updates to the protocol to remember configs
attempt at fixing Roger's new config
adding Norm Uncertainty to ZH
Update style of post-fit plots

 - remove H->tt text from top label
 - increase size of CMSPrelim text from 0.03 to 0.04
 - Move the channel and category text to below the legend on
   the right (apart from ee and mm)
 - add new category names
 - increase size of legend and change position slightly
Merge pull request #243 from ajgilbert/postfit-plots

Update style of post-fit plots
Norm Uncertainty for VH
Merge pull request #240 from aburgm/master

Add wzNorm, zzNorm and signalNorm uncertainties for ltt
Merge pull request #244 from abdollah110/master

Norm Uncertainty for VH
adding config for latest bbb configuration and combination with VH
removing testing version of limits.config, replacing with dated version ready for running
Renaming the date style for the usual convention
removing incorrectly labelled config
updating config to match latest bbb setup, and including VH
updating droplist_producer for tt pruning threshold to match the other channels and new merging threshold of 0.5
adding missing VH to the submitted mlfits
Merge pull request #245 from rcl11/fix_merging_VH

Configs as of 131114
decorrelating eff
Merge pull request #246 from abdollah110/master

decorrelating efficiencies
added an function to set entries of morphed histograms to zero in case they would be negativ