Migrate L1Trigger Code to New Random Service Interface

Migrate L1Trigger code to use the new interface
of the random number generator service designed to work
with the multithreaded Framework. The main interface
change is to require a StreamID or LuminosityBlockIndex
argument to the getEngine function. In most cases,
this required moving code from the constructor to
the event or beginLuminosityBlock method. Then a pointer
to the engine was percolated or passed in some way
to the point where it was used.
move the default HLT menu for relvals to the development one
Merge pull request #2479 from wddgit/migrateToNewRandomServiceInterface3

Multithreading fixes -- Migrate L1Trigger Code to New Random Service Interface
Merge pull request #2498 from perrotta/moveDefaultHLTMenu

HLT -- Move the default HLT menu for relvals to the development one
Merge remote branch 'origin/CMSSW_7_1_X' into CMSSW_7_0_X