Allow composite metrics
Update README to include composite metrics
Bullet points as bullet points
Formatting changes for README
Be a bit more specific about composite checks and minimum check time
Merge pull request #18 from wanelo-chef/composite-metrics

Composite metrics
rescue timeout and connrefused errors for JSON, Resmon, and NAD by returning empty metrics lists, instead of terminating Chef
properly scope variable with target's response outside the begin block
Merge pull request #20 from jsime/resmon-exception

Resmon/NAD/JSON target exception handling
Fix syntax error