Merge pull request #640 from smuzaffar/IB/CMSSW_6_2_X/stable

disable coral sub-package
Merge pull request #644 from smuzaffar/IB/CMSSW_6_2_X/stable

updated scram version to V2_2_5_pre7 to avoid perl module dependency
Merge pull request #658 from smuzaffar/IB/CMSSW_6_2_X/stable

updated scram version to V2_2_5_pre8 which now prints only warning for scram_arch/os mismatch...
updated config tag to V05-01-25