Merge pull request #390 from smuzaffar/IB/CMSSW_5_3_X/slc6_amd64_gcc472

updated das-client to 1.11.7
Merge pull request #396 from smuzaffar/IB/CMSSW_5_3_X/slc6_amd64_gcc472

updated for 5.3.15
updated for CMSSW_5_3_15_patch1