Patch hierarchyconstraints to CMSSW_7_0_X

[frmeier]

This is a backport to 70X of pull request #2370. Notes from there:

This patch has been prepared by Gero Flucke some time ago, see https://twiki.cern.ch/twiki/bin/viewauth/CMS/TkAlignmentLegacyThoughts, first topic. Testing happened on CMSSW_4_4_5. Results were presented in the alignment meeting of Oct 31, 2013, where the modifications got blessed. See https://twiki.cern.ch/twiki/bin/viewauth/CMS/TkAlPullReq201401 for more details and link to the presentation.
This is an outstanding issue since months that was not put into git.

For consistency, this needs to be put into earlier releases as well. Please give instructions if this is not the right flavour of 70X and/or if we should target this patch to other 70X versions as well.

[cmsbuild]

A new Pull Request was created by @frmeier (Frank Meier) for CMSSW_7_0_X.

Patch hierarchyconstraints to CMSSW_7_0_X

It involves the following packages:

Alignment/CommonAlignmentParametrization

@cmsbuild, @Degano, @diguida, @rcastello, @nclopezo can you please review it and eventually sign? Thanks.
@ghellwig, @pakhotin, @mmusich 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, @ktf you are the release manager for this.
You can merge this pull request by typing 'merge' in the first line of your comment.

[frmeier]

I would like to add the following:
When I compiled this in 70X I received the same warning as was mentioned in https://hypernews.cern.ch/HyperNews/CMS/get/sw-develtools/1962/1.html. I'm assuming this is ok in this case as well. Maybe you want to do what was proposed in that hn thread.

[cmsbuild]

+1
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-2591/63/summary.html

[rcastello]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_0_X IBs unless changes (tests are also fine). @nclopezo, @ktf can you please take care of it?

[davidlange6]

+1