ThroughputService: use std::chrono::steady_clock instead of clock_gettime(CLOCK_MONOTONIC, ...)
Merge pull request #5645 from fwyzard/ThroughputService_v2

ThroughputService: use std::chrono::steady_clock instead of clock_gettime(CLOCK_MONOTONIC, ...)
Merge remote branch 'origin/CMSSW_7_3_X' into CMSSW_7_0_X