Made static a member data in DeterministicAnnealing

[Dr15Jones]

A static was being used to store state information for the class
DeterministicAnnealing. This was moved to a member variable in
order to avoid thread-safety problems.

[cmsbuild]

A new Pull Request was created by @Dr15Jones (Chris Jones) for CMSSW_7_1_X.

Made static a member data in DeterministicAnnealing

It involves the following packages:

RecoVertex/VertexTools

@nclopezo, @cmsbuild, @anton-a, @thspeer, @slava77, @Degano can you please review it and eventually sign? Thanks.
@cerati, @GiacomoSguazzoni, @rovere 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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@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.

[slava77]

+1

for #3579 0ec184e
tested OK in
CMSSW_7_1_X_2014-04-30-0200 /test area sign363

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_1_X IBs unless changes or unless it breaks tests. @nclopezo, @ktf can you please take care of it?