Merge pull request #641 from smuzaffar/IB/CMSSW_5_3_X/slc6_amd64_gcc472

disable coral sub-package
Merge pull request #643 from smuzaffar/IB/CMSSW_5_3_X/slc6_amd64_gcc472

updated scram version to V2_2_5_pre7 to avoid perl module dependency
Merge pull request #653 from smuzaffar/IB/CMSSW_5_3_X/slc6_amd64_gcc472

updated scram version to V2_2_5_pre8 which now prints only warning for s...
updated config tag to V05-01-24-00 for 53X
updated for 5.3.18
updated config tag to V05-01-25-00
updated config tag to V05-01-27-00