remove the cleanning step in ExhaustiveMuonTrajectoryBuilder
change to make the dPhi dEta customizable

Conflicts:
	RecoMuon/MuonSeedGenerator/src/MuonSeedOrcaPatternRecognition.h
Conflict fixed
segment based cleaning
set defaults values to the parameters
Enter in the chi2-check block only if the two tracks have exactly the same number of segments, otherwise choose the one with more hits
Merge pull request #4894 from ktf/STACleaning72X

Standalone muon reconstruction cleaning
Merge remote branch 'origin/CMSSW_7_2_X' into CMSSW_7_0_X