Replace old HF shower data file.

As requested in #795.
Merge pull request #1047 from degano/hfshower_71X

Replace old HF shower data file.
Merge remote branch 'origin/IB/CMSSW_7_1_X/stable' into IB/CMSSW_7_0_X/stable
Merge remote branch 'origin/IB/CMSSW_7_2_X/stable' into IB/CMSSW_7_0_X/stable