Avoid segfault in playback mode if no files specified
Must set process history ID in runs, lumis, and events
Merge pull request #2718 from wmtan/AvoidPlaybackSegfaultOnEmptyFileList70X

Framework fix -- Avoid segfault in playback mode if no files specified
Merge remote branch 'origin/CMSSW_7_0_X' into CMSSW_7_0_X
Fix unused function warning.
Merge pull request #2741 from degano/unused_warnings_71X490

Gcc 4.9.0 -- Fix unused function warning.
Merge pull request #2736 from wmtan/FedRawDataInputSourceFix70X

EventFilter/Utilities -- Must set process history ID in runs, lumis, and events
Merge remote branch 'origin/CMSSW_7_0_X' into CMSSW_7_0_X