Backporting PFJet-only explicit jet-track association for b-tagging studies

[ferencek]

This is a backport of PFJet-only explicit jet-track association available in CMSSW>=6_0_X. This feature has no impact on the standard reconstruction and does not introduce any DataFormat changes.

[cmsbuild]

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

Backporting PFJet-only explicit jet-track association for b-tagging studies

It involves the following packages:

RecoJets/JetAssociationAlgorithms
RecoJets/JetAssociationProducers

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

[slava77]

+1

for #3222 149565b
tested in
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?