Add most CSC changes to the run2 era

[mark-grimes]

This is another pull request to split up #6784 and apply it incrementally. This part deals with most of the CSC customisations. #7500 and #7503 are associated but are for different packages. Each of these pull requests can be merged individually.

Note that none of these changes have any effect unless the run2 era is explicitly used. Details on how to do that are on #7500.

There are still some CSC customisations to move from the helper customisation to the era. I need to check the overlap with trigger code and I'll move those in a subsequent pull request. As mentioned on #7500, the changes in the first commit (22f41e2) are just to update for external changes to the customisations in the last week, and not strictly related to this change (but still required).

[cmsbuild]

A new Pull Request was created by @mark-grimes (Mark Grimes) for CMSSW_7_4_X.

Add most CSC changes to the run2 era

It involves the following packages:

CalibMuon/CSCCalibration
EventFilter/CSCRawToDigi
Geometry/CSCGeometryBuilder
RecoLocalMuon/CSCRecHitD
SLHCUpgradeSimulations/Configuration
SimMuon/CSCDigitizer

@civanch, @diguida, @cvuosalo, @ianna, @mdhildreth, @cmsbuild, @Dr15Jones, @cerminar, @slava77, @mmusich, @ktf, @nclopezo can you please review it and eventually sign? Thanks.
@Martin-Grunewald, @bellan, @ghellwig, @barvic this is something you requested to watch as well.
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[slava77]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-7506/2298/summary.html