Sample Curl command for submitting metric data
Use current time for example curl
Merge pull request #18 from unepwcmc/curl

Curl
Merge branch 'master' into flesh-out-metric-page

* master:
  Use current time for example curl
  Sample Curl command for submitting metric data

Conflicts:
	app/views/metrics/show.html.erb
Only render metric chart canvas elements when there is data
Render data chart on metric show page