HLT update with new menu AND L1 update - 72X

[Martin-Grunewald]

HLT update with new menu but before L1 update - 72X

This PR adds a new frozen menu for run-1 relval workflows and IB tests.
It also uses new-style naming conventions for symbolic GTs, keeping
the old one for backward compatibility.

The 73X version of this PR is #5531.

I have just updated this PR with the HLT menus to use the new L1.
Thus the update also adds the L1 PRs #5529 and #5575.
It also updates again the addOn IB tests.

Following PR #5581, we now also set useLegacyError=TRUE in StripCPE, as is done by RECO.

[cmsbuild]

A new Pull Request was created by @Martin-Grunewald (Martin Grunewald) for CMSSW_7_2_X.

HLT update with new menu but before L1 update

It involves the following packages:

Configuration/AlCa
Configuration/HLT
Configuration/PyReleaseValidation
HLTrigger/Configuration
Utilities/ReleaseScripts

@perrotta, @cmsbuild, @diguida, @vlimant, @cerminar, @Martin-Grunewald, @franzoni, @Dr15Jones, @rcastello, @fwyzard, @davidlange6, @ktf, @nclopezo can you please review it and eventually sign? Thanks.
@ghellwig, @wddgit this is something you requested to watch as well.
You can sign-off by replying to this message having '+1' in the first line of your reply.
You can reject by replying to this message having '-1' in the first line of your reply.
@nclopezo you are the release manager for this.
You can merge this pull request by typing 'merge' in the first line of your comment.

[cmsbuild]

Pull request #5530 was updated. @perrotta, @cmsbuild, @diguida, @vlimant, @cerminar, @Martin-Grunewald, @franzoni, @Dr15Jones, @rcastello, @fwyzard, @davidlange6, @ktf, @nclopezo can you please check and sign again.

[Martin-Grunewald]

Short matrix passes in 72X: 7 7 6 6 4 tests passed, 0 0 0 0 0 failed

[cmsbuild]

Pull request #5530 was updated. @perrotta, @cmsbuild, @diguida, @vlimant, @cerminar, @Martin-Grunewald, @franzoni, @Dr15Jones, @rcastello, @fwyzard, @davidlange6, @ktf, @nclopezo can you please check and sign again.

[Martin-Grunewald]

+1

[diguida]

+1