Add flag for extended cpu metrics#6

Merged

scottcunningham merged 4 commits intoens-masterfrom

extended_cpu_metrics_upstream

Jan 18, 2017

Commits on Jan 13, 2017

Add extended flag to CPU collector
Scott Cunningham
committed

Commits on Jan 16, 2017

Update CPUCollector docs
Scott Cunningham
committed

Commits on Jan 17, 2017

Add test case for CPUCollector with 'simple' flag set
Scott Cunningham
committed
Add test case for CPUCollector with 'extended' flag set
Scott Cunningham
committed