Avoid clobbering of ROOT dictionaries.
Allow combineCards.py to pick up discrete nuisance parameters
Merge pull request #55 from adavidzh/linkdef_fix

Avoid clobbering of ROOT dictionaries.
Also add runtime warning if there is a name clash
Update new Pdf for HWW analysis
Update new Pdf for HWW analysis
Update new Pdf for HWW analysis
Merge pull request #57 from rgerosa/master

Implementation of new Pdfs for HWW-related EXO analysis
Merge pull request #56 from matthewkenzie/get_combineCard_to_pick_up_discrete_nuis

Allow combineCards.py to pick up discrete nuisance parameters