Revert "Re-enable xrootd 4.0.2."
Merge pull request #940 from cms-sw/revert-922-re-enable_xrootd402_72X

Revert "Re-enable xrootd 4.0.2."
Merge remote branch 'origin/IB/CMSSW_7_2_X/stable' into IB/CMSSW_7_0_X/stable
New Data external: added data external for RecoHI/HiJetAlgos
Merge pull request #941 from nclopezo/add-data-ext-for-RecoHI-HiJetAlgos

New Data external: added data external for RecoHI/HiJetAlgos
Merge remote-tracking branch 'origin/IB/CMSSW_7_2_X/stable' into IB/CMSSW_7_0_X/stable
Merge branch 'IB/CMSSW_7_2_X/gcc491' of github.com:cms-sw/cmsdist into merge-20140826
Merge branch 'merge-20140826' into gcc490-port