Offline validation for 74X collisions and cosmics

[hroskes]

Redo of #9551

CondDBv2 and ROOT6 compilation. Also in 75X as #9552, without the CondDBv2 part because as I understand it CondDBv2 is the default in 75X.

[cmsbuild]

A new Pull Request was created by @hroskes (Heshy Roskes) for CMSSW_7_4_X.

Offline validation for 74X collisions and cosmics

It involves the following packages:

Alignment/OfflineValidation

@cmsbuild, @mmusich, @diguida, @cerminar can you please review it and eventually sign? Thanks.
@mschrode, @ghellwig, @frmeier, @mmusich, @tlampen this is something you requested to watch as well.
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@Degano you are the release manager for this.
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[mmusich]

please test

[cmsbuild]

The tests are being triggered in jenkins.

[cmsbuild]

+1
Tested at: 5d138e7
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-9635/5538/summary.html

[mmusich]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_4_X IBs once checked with relvals in the development release cycle of CMSSW (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @smuzaffar

[davidlange6]

+1