updated config tag to V05-01-28 which forces to add poison inculde path if exists in LOCALTOP
delete poison source directory too
Merge pull request #695 from smuzaffar/IB/CMSSW_7_0_X/stable

updated config tag to V05-01-28 which forces to add poison inculde path if exists in LOCALTOP
Merge remote branch 'origin/IB/CMSSW_7_0_X/stable' into IB/CMSSW_7_0_X/stable