Thread safety fix: avoid mutable
data members which are only set in constructor are made const
reference manual scripts upgraded for doxygen1.8.5
update available references for release 700
Merge pull request #1527 from deguio/memoryReferenceFor700

DQM fixes -- Update memory reference for release 700
Merge pull request #1500 from smuzaffar/thread-safety-fix-RecoLuminosity-LumiProducer

Multithreading fixes -- Avoid mutable in RecoLuminosity/LumiProducer
Merge pull request #1522 from cmsdoxy/script_updates

Documentation fixes -- Reference manual scripts upgraded for doxygen1.8.5
Merge remote-tracking branch 'origin/CMSSW_7_0_X' into CMSSW_7_0_X