bugfix and check on empty DQM content

[threus]

Fixing the Strip bad component calibration, to be used at PCL. Added protection against running the calibration on empty DQM file (i.e. when Strips are out of DAQ). Work of @suchandradutta and Sourav Dey.

We would like to use this update at PCL for CRAFT already.

[cmsbuild]

A new Pull Request was created by @threus for CMSSW_7_3_X.

bugfix and check on empty DQM content

It involves the following packages:

DQMOffline/CalibTracker

@cmsbuild, @danduggan, @nclopezo, @deguio can you please review it and eventually sign? Thanks.
@rociovilar this is something you requested to watch as well.
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@nclopezo you are the release manager for this.
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[deguio]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_3_X IBs unless changes or unless it breaks tests. This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @nclopezo, @ktf, @smuzaffar

[cmsbuild]

-1
Tested at: a09275e
When I ran the RelVals I found an error in the following worklfows:
50101.0 step2

runTheMatrix-results/50101.0_SingleMuPt10_UP15ID+SingleMuPt10_UP15FSIDINPUT+SingleMuPt10FS_UP15_ID+HARVESTUP15FS/step2_SingleMuPt10_UP15ID+SingleMuPt10_UP15FSIDINPUT+SingleMuPt10FS_UP15_ID+HARVESTUP15FS.log

you can see the results of the tests here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-8251/6590/summary.html

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_3_X IBs unless changes (but tests are reportedly failing). This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @nclopezo, @ktf, @smuzaffar