updated scram version to V2_2_5 which contains bug fix for firstline comment in BuildFiles
Merge pull request #969 from smuzaffar/IB/CMSSW_7_2_X/stable

updated scram version to V2_2_5 which contains bug fix for firstline comment in BuildFiles
Merge remote branch 'origin/IB/CMSSW_7_2_X/stable' into IB/CMSSW_7_0_X/stable