IVF cleanup + trackJetPt as TaggingVariable: Backport from 7_1_X to 5_3_X

[ferencek]

Backport of #2941 but without any changes to the RECO sequence

[cmsbuild]

A new Pull Request was created by @ferencek (Dinko Ferencek) for CMSSW_5_3_X.

IVF cleanup + trackJetPt as TaggingVariable: Backport from 7_1_X to 5_3_X

It involves the following packages:

DataFormats/BTauReco
PhysicsTools/PatAlgos
RecoBTag/SecondaryVertex
RecoVertex/AdaptiveVertexFinder

@nclopezo, @monttj, @cmsbuild, @anton-a, @thspeer, @slava77, @vadler, @Degano can you please review it and eventually sign? Thanks.
@TaiSakuma, @GiacomoSguazzoni, @rovere, @nhanvtran, @cerati, @pvmulder 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.
@smuzaffar you are the release manager for this.
You can merge this pull request by typing 'merge' in the first line of your comment.

[vadler]

+1

[slava77]

is it clear that nobody uses int values for the enums?
Insertion of one new value will mess it up

[ferencek]

As far as I am aware, the only situations when int values are used directly is when loops over the full list are performed. @pvmulder should be able to confirm.

[pvmulder]

Confirmed.

[slava77]

+1

for #3393 691ec44

CMSSW_5_3_X_2014-05-08-1400 (test area sign5317a in a combination of
pulls 3168 3222 3223 3393 3672 3749)
No regressions observed

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_5_3_X IBs unless changes or unless it breaks tests. @smuzaffar can you please take care of it?