L1 MHT and forward jet fixes (74X backport of #11676)

[harmonicoscillator]

74X backport of #11676
This PR depends on #11378 (and includes those commits as they are not merged yet).

[cmsbuild]

A new Pull Request was created by @richard-cms (R. Alex Barbieri) for CMSSW_7_4_X.

L1 MHT and forward jet fixes (74X backport of #11676)

It involves the following packages:

L1Trigger/L1TCalorimeter

@cmsbuild, @mulhearn can you please review it and eventually sign? Thanks.
@Martin-Grunewald 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.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/8982/console

[cmsbuild]

-1
Tested at: 06d36ed
When I ran the RelVals I found an error in the following worklfows:
1003.0 step2

runTheMatrix-results/1003.0_RunMinBias2012A+RunMinBias2012A+RECODDQM+HARVESTDDQM/step2_RunMinBias2012A+RunMinBias2012A+RECODDQM+HARVESTDDQM.log
----- Begin Fatal Exception 19-Oct-2015 03:32:08 CEST-----------------------
An exception of category 'FallbackFileOpenError' occurred while
   [0] Constructing the EventProcessor
   [1] Constructing input source of type PoolSource
   [2] Calling RootInputFileSequence::initFile()
   [3] Calling StorageFactory::open()
   [4] Calling XrdFile::open()
Exception Message:
Failed to open the file 'root://xrootd-cms.infn.it//store/data/Run2012A/MinimumBias/RAW/v1/000/191/226/02F7EB61-0986-E111-A66F-5404A63886B4.root'
   Additional Info:
      [a] XrdCl::File::Open(name='root://eoscms.cern.ch//eos/cms/store/data/Run2012A/MinimumBias/RAW/v1/000/191/226/02F7EB61-0986-E111-A66F-5404A63886B4.root', flags=0x10, permissions=0660) => error '[ERROR] Server responded with an error: [3011] Unable to open file /eos/cms/store/data/Run2012A/MinimumBias/RAW/v1/000/191/226/02F7EB61-0986-E111-A66F-5404A63886B4.root; No such file or directory
' (errno=3011, code=400). No additional data servers were found.
      [b] Last URL tried: root://eoscms.cern.ch:1094//eos/cms/store/data/Run2012A/MinimumBias/RAW/v1/000/191/226/02F7EB61-0986-E111-A66F-5404A63886B4.root?tried=
      [c] Problematic data server: eoscms.cern.ch:1094
      [d] Disabled source: eoscms.cern.ch:1094
      [e] Input file root://eoscms.cern.ch//eos/cms/store/data/Run2012A/MinimumBias/RAW/v1/000/191/226/02F7EB61-0986-E111-A66F-5404A63886B4.root could not be opened.
Fallback Input file root://xrootd-cms.infn.it//store/data/Run2012A/MinimumBias/RAW/v1/000/191/226/02F7EB61-0986-E111-A66F-5404A63886B4.root also could not be opened.
Original exception info is above; fallback exception info is below.
      [f] XrdCl::File::Open(name='root://xrootd-cms.infn.it//store/data/Run2012A/MinimumBias/RAW/v1/000/191/226/02F7EB61-0986-E111-A66F-5404A63886B4.root', flags=0x10, permissions=0660) => error '[FATAL] Redirect limit has been reached' (errno=0, code=306). No additional data servers were found.
      [g] Last URL tried: root://cmsxrootd-site2.fnal.gov:1093//store/data/Run2012A/MinimumBias/RAW/v1/000/191/226/02F7EB61-0986-E111-A66F-5404A63886B4.root?tried=+1213llrxrd-redir.in2p3.fr,
      [h] Problematic data server: cmsxrootd-site2.fnal.gov:1093
      [i] Disabled source: cmsxrootd-site2.fnal.gov:1093
----- End Fatal Exception -------------------------------------------------

you can see the results of the tests here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-11678/8982/summary.html

[mulhearn]

I guess we don't need this in 74X.

[mulhearn]

@richard-cms: can you close this PR?