drop deprecated parameter enableDQMbyLumi
add a data member and public accessor for the path "exclusive" time
fill the DQM plots from internal buffers instead of on the fly
fix comments
use C++11 type aliases instead of public inheritance
migrate FastTimrService to the threadsafe signales, and reorganise the plots

Cache the first/last path and endpath names by string instead of by
pointer; this makes the comparison slower, but we should migrate to
pathIDs anyway.
In the long term it's not clear whether it makes sense to keep track
of the "first" and "last" paths in a multithreaded environment.
convert FastTimerFilter to a global EDFilter, and adapt to the threadsafe FastTimerService
add a FastTimer based on std::chrono::high_resolution_clock
Updated GTs with the new ZS thresholds for HO
Merge pull request #1703 from fwyzard/FastTimerService_part1

FastTimerService - multithreading fixes part1
Merge pull request #1716 from demattia/Updated_GTs_with_new_ZS_thresholds_for_HO

Updated GTs with the new ZS thresholds for HO
Merge remote-tracking branch 'origin/CMSSW_7_0_X' into CMSSW_7_0_X