Thread safety fix: avoid mutable
data members which are only set in constructor are made const
Updated ProcInfoFetcher to match linux 2.6 interface

The code was using an old format of the proc info system. This caused a parsing problem which caused the program to write lots of warnings. This should bring our code up to the linux 2.6 standard.
reference manual scripts upgraded for doxygen1.8.5
update available references for release 700
Merge pull request #1507 from Dr15Jones/fixProcInfoParsing

Framework fixes -- Updated ProcInfoFetcher to match linux 2.6 interface
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