Modification to perf_testing.py
Enabled parallelization, tskmon.
Merge remote-tracking branch 'ysanders/master' into feature-parallelperf
Added YRS's changes (#23), fixed threading issue with tskmon.
Fixed bug when tskmon_client=None, handled threading better...?
Fixed pickling of distributions.
Merge pull request #24 from csferrie/feature-parallelperf

Parallel performance tracking, online monitoring, rich metadata