disable coral sub-package
Merge pull request #638 from smuzaffar/IB/CMSSW_7_0_X/stable

disable coral sub-package
Merge remote branch 'origin/IB/CMSSW_7_0_X/stable' into IB/CMSSW_7_0_X/stable
Merge remote branch 'origin/IB/CMSSW_7_1_X/stable' into IB/CMSSW_7_0_X/stable