Control logging level from env variable. Reenable faye message logging, but only at a low level.
Use angular $provide.decorator to add timestamps to console.debug

The extra verbosity should help when troubleshooting faye
connections. Logging Faye message objects separately is for the
benefit of Safari, which does not display objects in the console as
visibly as Chrome does.
Indicate connection status in title tag via unicode symbol

Instead of using ng-pluralize to populate the title tag, publish a
custom event whenever the queue size changes and handle it from the
app controller.