Some missing pieces for PreMixing

[mdhildreth]

HcalSignalGenerator is only used with the DataMixer. Otherwise, one configuration line missing in ConfigBuilder. Please don't approve until David Lange has run one last round of identity tests.

[cmsbuild]

A new Pull Request was created by @mdhildreth for CMSSW_7_3_X.

Some missing pieces for PreMixing

It involves the following packages:

Configuration/Applications
SimCalorimetry/HcalSimAlgos

@civanch, @nclopezo, @mdhildreth, @cmsbuild, @franzoni, @davidlange6 can you please review it and eventually sign? Thanks.
@ghellwig 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 you are the release manager for this.
You can merge this pull request by typing 'merge' in the first line of your comment.

[cmsbuild]

-1

Tested at: 69a0a8d
I ran the usual tests and I found errors in the following unit tests:

---> test TestFWCoreIntegrationStandalone had ERRORS

you can see the results of the tests here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-6501/1012/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-6501/1012/summary.html