Few changes to diff-xs:
- use explicit typedef for UnfoldAnalysis base class
- fixed indentation of UnfoldAnalysis
- moved some settings from AnalysisScripts/diffanalysis/unfolding.dat to AnalysisScripts/diffanalysis/differentialnalysis.dat
Merge remote-tracking branch 'amarini/topic_diffAnalysisAndUnfolding' into topic_diffxs

Conflicts:
	AnalysisScripts/diffanalysis/unfolding.dat
	UnfoldAnalysis/src/UnfoldAnalysis.cc
Add unsmeared sE/E getters to MassResolution
Updated GBRLikelihoodEGTools
Merge pull request #4 from musella/topic_diffxs_and_unfolding

Topic diffxs and unfolding