added forgotten NeutronKiller process, cleanup comments
update xml attribute name for reading shower scales
retrieve tarball from frontier instead of afs test area
Merge pull request #4479 from bendavid/py8matchingdev3

update xml attribute name for reading shower scales
Merge pull request #4477 from civanch/mctruth_process_num

Added forgotten NeutronKiller process, cleanup comments
Merge remote branch 'origin/CMSSW_7_2_X' into CMSSW_7_0_X