Merge pull request #24 from smuzaffar/master

make use of release tag so that same config tag can be used for 53x to 72X
Merge pull request #25 from smuzaffar/master

fix class version update rule
CMSSW_BuildFile: add ASAN CXXFLAGS

The following adds CXXFLAGS for ASAN CMSSW IBs.
ASAN == Address Sanitizer

Signed-off-by: David Abdurachmanov <davidlt@cern.ch>
Merge pull request #26 from davidlt/asan-cxxflags

CMSSW_BuildFile: add ASAN CXXFLAGS
Merge pull request #27 from smuzaffar/master

new config tag V05-03-20
use _ASAN_ to match ASAN releases
big objs symlink fixed; properly set CLASS variables for various products