updated scram version to V2_2_5_pre7 to avoid perl module dependency
Merge pull request #642 from smuzaffar/IB/CMSSW_7_0_X/stable

updated scram version to V2_2_5_pre7 to avoid perl module dependency
Merge remote branch 'origin/IB/CMSSW_7_0_X/stable' into IB/CMSSW_7_0_X/stable