Fix several usages of un-initialized variables in DQM.

[dmitrijus]

In CastorMonitor and DTSegmentsTask the initialization from
ParameterSet was commented out, I don't know why.
I haven't un-un-commented them, just added initial values.

In QcdPhotonsDQM the variable was used to count the number of events,
and scale the histogram at the endJob.
This should be done via dqm harvesting now what we are multithreaded,
and does not make sense in the DQMEDAnalyzer.
If someone cares or needs the rates (instead of actual
values), we will create a DQMEDHarvester.

In L1TdeCSCTF.cc the array was not properly initialized,
because of the single-character error left by the developer.

[deguio]

please test

[cmsbuild]

The tests are being triggered in jenkins.

[cmsbuild]

A new Pull Request was created by @dmitrijus (Dmitrijus) for CMSSW_7_4_X.

Fix several usages of un-initialized variables in DQM.

It involves the following packages:

DQM/CastorMonitor
DQM/L1TMonitor
DQM/Physics
DQMOffline/Muon

@cmsbuild, @danduggan, @deguio can you please review it and eventually sign? Thanks.
@rappoccio, @barvic, @battibass, @abbiendi, @jhgoh, @bellan, @trocino, @rociovilar this is something you requested to watch as well.
You can sign-off by replying to this message having '+1' in the first line of your reply.
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@Degano you are the release manager for this.
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[Dr15Jones]

Thanks!

[cmsbuild]

+1
Tested at: 9859982
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-9866/8327/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-9866/5767/summary.html

[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