[7.1.X] updated Sherpa 2.2.5 and OpenLoops 2.0.b

[smuzaffar]

backport of #4377
and #4351

[cmsbuild]

A new Pull Request was created by @smuzaffar (Malik Shahzad Muzaffar) for branch IB/CMSSW_7_1_X/stable.

@cmsbuild, @smuzaffar, @gudrutis, @mrodozov can you please review it and eventually sign? Thanks.
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• Backported from [10.3.X] OpenLoops: NLO QCD+EWK predictions updated in Openloops #4377

[smuzaffar]

please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/30954/console

[cmsbuild]

+1
Tested at: 05b72fb
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-4414/30954/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-4414/30954/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 11
• DQMHistoTests: Total histograms compared: 682535
• DQMHistoTests: Total failures: 2882
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 679279
• DQMHistoTests: Total skipped: 374
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: -10 KiB( 10 files compared)
• Checked 44 log files, 4 edm output root files, 11 DQM output files

[smuzaffar]

+externals
FYI @fabiocos

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next IB/CMSSW_7_1_X/stable IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @davidlange6, @slava77, @smuzaffar, @fabiocos (and backports should be raised in the release meeting by the corresponding L2)

[fabiocos]

+1