Improve time selection.
Move TimeContainer -> EventDate conversion logic to TimeContainer.
Merge commit '8155726b2f96d76de0a17c5a35236aaead3c8a33' into design

Conflicts:
	app/partials/desktop/events/general.html
	app/partials/desktop/select-time/main.html
	app/scripts/controllers/event.coffee
	app/scripts/services/time-container.coffee