Pretty battery formatting
Prettify
Fix default time
Better tooltip
Don't use dirty values
Fix JSHint unused warning
JS Strict
Smaller size
Remove trailing comma
Replace power update timer with listening on UPower events
Updated event for UPower
Merge branch 'power'

Conflicts:
	scripts/power.js
Version bump
Disable Werror
Enable Werror on Travis
Merge branch 'master' into custom-bus