first steps using a 'errors collection service'
added environment condition before rendering rollbar stuff
Rename vars
Merge branch 'CDB-1882' of github.com:CartoDB/cartodb into CDB-1882

* 'CDB-1882' of github.com:CartoDB/cartodb:
  added environment condition before rendering rollbar stuff
CDB-1882 #resolve - js errors stored :)
prevent error loading error-stats in development
fixed problem with our cartodb.js logs
Enables rollbar for staging
JS errors reported from info level
removed error stats from embed because it is unnecessary
Merge remote-tracking branch 'origin/CDB-1882' into release/2.11.0

Conflicts:
	app/views/admin/visualizations/embed_map.html.erb