Delete unused template.
backend: End keg correctly when starting new keg.
timeline: Show drink volumes in a badge.
Update Highcharts to 3.0.9
Minor homepage visual refresh; remove Angular for now.
notification: remove import on core models.

This causesed some weird circular import issues while
Django is loaded INSTALLED_APPS / AUTH_USER_MODEL.

Re-order apps in settings.py while we're at it.