bug fix for stage1 dqm

[jingyucms]

Make a PR trying to fix:
Trying to fix 3 bugs for stage1 dqm:

1. change Stage1 Client histogram folder
2. make sure GMT fed will not be affected when swap GT fiber between stage1 and legacy
3. restrict layer2 to unpack only 1Bx for data emulator comparison

Similar to #10360 , But since #10360 have a lot of bugs, I made this new PR and together with #10442 will replace #10360.

[cmsbuild]

A new Pull Request was created by @jingyucms (Jingyu Zhang) for CMSSW_7_4_X.

bug fix for stage1 dqm

It involves the following packages:

DQM/Integration
DQM/L1TMonitor
DQM/L1TMonitorClient
L1Trigger/Configuration
L1Trigger/HardwareValidation

@cmsbuild, @danduggan, @mulhearn, @deguio can you please review it and eventually sign? Thanks.
@Martin-Grunewald, @threus, @batinkov 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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[mulhearn]

please test

[cmsbuild]

The tests are being triggered in jenkins.

[cmsbuild]

-1
Tested at: 1be59e4
When I ran the RelVals I found an error in the following worklfows:
25202.0 step2

runTheMatrix-results/25202.0_TTbar_13+TTbar_13+DIGIUP15_PU25+RECOUP15_PU25+HARVESTUP15_PU25/step2_TTbar_13+TTbar_13+DIGIUP15_PU25+RECOUP15_PU25+HARVESTUP15_PU25.log
----- Begin Fatal Exception 31-Jul-2015 21:31:32 CEST-----------------------
An exception of category 'Configuration' occurred while
   [0] Processing run: 1 lumi: 1 event: 1
   [1] Running path 'digitisation_step'
   [2] Calling event method for module MixingModule/'mix'
Exception Message:
RootInputFileSequence::readOneRandom(): no input files specified for secondary input source.
----- End Fatal Exception -------------------------------------------------

4.22 step1

DAS Error

140.53 step1

DAS Error

1000.0 step1

DAS Error

1001.0 step1

DAS Error

1003.0 step1

DAS Error

you can see the results of the tests here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-10463/5160/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-10463/2749/summary.html

[davidlange6]

this introduces some changes in the 25ns MC - but am told it can not be avoided.