add alternative custom EM physics, remove old unused process enumeration
handle correctly the ME which are not TH1
Merge pull request #4304 from deguio/fixDQMStoreAdd_71

handle correctly the ME which are not TH1 [int,string,float]
Merge pull request #4302 from civanch/exotic_ss

Alternative EM physics for heavy exotics
Merge remote branch 'origin/CMSSW_7_1_X' into CMSSW_7_0_X