Merged CMSSW_6_2_X_SLHC from repository gem-sw
To get information of geometry using GEMGeometry.
Merge branch 'CMSSW_6_2_X_SLHC' of https://github.com/cms-sw/cmssw into gem-sim-validation
Fix bug to get info about geometry.
Collect common function of GEMTrackMatch and make child classes.
Merge branch 'CMSSW_6_2_X_SLHC' of https://github.com/cms-sw/cmssw into gem-sim-validation
Fix bug to access 72th chamber.
Code cleaning.
Add try and catch for exception about GEMGeometry.
Separate bookHisto() and setGeometry().
bugfix about ChamberId.
Add a feature to prevent crash if GEMGeometry is missing.
Code cleaning.
First implementation of TeV muon refits with GEMs
Merge remote-tracking branch 'gem-cmssw/CMSSW_6_2_X_SLHC' into from-CMSSW_6_2_0_SLHC7
Merge github.com:geonmo/cmssw into gem-sim-validation-for-gemsw

Conflicts:
	SLHCUpgradeSimulations/Configuration/python/combinedCustoms.py
	Validation/MuonGEMDigis/plugins/MuonGEMDigis.cc
	Validation/MuonGEMHits/plugins/MuonGEMHits.cc
Merge branch 'gem-sim-validation-for-gemsw' of github.com:geonmo/cmssw into gem-sim-validation-for-gemsw

Conflicts:
	Validation/MuonGEMDigis/plugins/MuonGEMDigis.cc
	Validation/MuonGEMHits/plugins/MuonGEMHits.cc
	Validation/MuonGEMHits/src/SimHitMatcher.cc
Merge branch 'CMSSW_6_2_X_SLHC' of github.com:gem-sw/cmssw into gem-sim-validation-for-gemsw
Add to consider about 9-10 eta partition geometry.
 - Fix radiusCenter and chamberHeight of even and odd.
 - Even chambers can not use roll 1(eta partition 1).
Merge pull request #48 from cms-sw/CMSSW_6_2_X_SLHC

Cmssw 6 2 x slhc
Apply patch to Odd chamber
Fix and remove legacy code. It was come during to fix confilcts.
Modify GEMTrackMatch for safety.
On buildLUT, replace roll 1 to 2.