Thread safety fix for MagneticField/Engine:  Member data modified in const function
20131119 change customization name for CrossingFrame activation
path fix

fixing inaccurate paths
Merge pull request #1529 from cmsdoxy/patch-1

Documentation fix -- Fix wrong path.
Merge pull request #1525 from fabiocos/70X-noCrossingFrame

Simulation fixes -- Crossing Frame customisation name adjustment
Merge pull request #1497 from smuzaffar/thread-safety-fix-MagneticField-Engine

Multithreading fixes -- MagneticField/Engine:  Member data modified in const function
Merge remote-tracking branch 'origin/CMSSW_7_0_X' into CMSSW_7_0_X