Make file static variable const
Add option to set stack size for threads

Added the ability to tell TBB what stack size to use for new threads.
This is can be done either at the command line or via the process.options
parameter of the configuration. If no value is given, it defaults to the
system default size. This has no effect on the main thread or a single
threaded program.
Set stack size for additional threads to 10MB

The IB RelVal 10.0 needs 10MB for stack size in order to read the
extremely large graph of edm::HepMCProduct stored in the ROOT file.
Merge pull request #1996 from Dr15Jones/addStackSizeControl

Multithreading fixes -- Add stack size control
DQMStore: fix the syntax used to forward calls from IBooker to DQMStore
DQMStore: forward more book calls from IBooker to DQMStore
Merge pull request #2013 from fwyzard/IBooker_variadic_calls_v2

DQM fixes -- automatically support all DQMStore book* calls in the IBooker (v2)
Merge pull request #1976 from gartung/static-fix-CondFormats-Common

Multithreading fixes -- Make file static variable const
Merged CMSSW_7_0_X from repository cms-sw
Merged refs/pull/1988/head from repository cms-sw
Fix conflicts due to changed interface in RecoJets/JetProducers/src/JetIDHelper