Fix ConfigEditor to handle VPSet which have no label

[ahinzmann]

edmConfigEditor isn't able to display VPSet, since it is looking for their label through the str implementation. Using instead the repr works for any kind of config element.

[cmsbuild]

A new Pull Request was created by @ahinzmann for CMSSW_7_5_X.

Fix ConfigEditor to handle VPSet which have no label

It involves the following packages:

FWCore/GuiBrowsers

@cmsbuild, @Dr15Jones can you please review it and eventually sign? Thanks.
@Martin-Grunewald, @wddgit, @wmtan 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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[Dr15Jones]

please test

[Dr15Jones]

+1

[cmsbuild]

The tests are being triggered in jenkins.

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_5_X IBs or unless it breaks tests. This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @smuzaffar

[Dr15Jones]

The failure was from DAS

[Dr15Jones]

please test

[cmsbuild]

The tests are being triggered in jenkins.

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_5_X IBs or unless it breaks tests. This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @smuzaffar

[cmsbuild]

-1
Tested at: 350fa35
When I ran the RelVals I found an error in the following worklfows:
50202.0 step3

runTheMatrix-results/50202.0_TTbar_13+TTbar_13+DIGIUP15_PU50+RECOUP15_PU50+HARVESTUP15_PU50+MINIAODMCUP1550/step3_TTbar_13+TTbar_13+DIGIUP15_PU50+RECOUP15_PU50+HARVESTUP15_PU50+MINIAODMCUP1550.log
----- Begin Fatal Exception 18-Jun-2015 19:16:22 CEST-----------------------
An exception of category 'Configuration' occurred while
   [0] Constructing the EventProcessor
   [1] Constructing module: class=MixingModule label='mix'
Exception Message:
RootEmbeddedFileSequence no input files specified for secondary input source.
----- End Fatal Exception -------------------------------------------------

you can see the results of the tests here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-9640/5559/summary.html

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_5_X IBs (but tests are reportedly failing). This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @smuzaffar