Initial attempt at adding enhanced date/time/select elements.

Using webmaker.org's UI library for 'select', and jQuery-UI for date/time.
Added markdown editor for events-create form description field, and misc UI cleanup.

Conflicts:
	assets/css/event_create.less
	assets/css/events.less
	static/js/events/index.js
	static/js/events/map/forms.js
	views/events/map.html
minor stylistics changes to facilitate future merges
Merge branch 'develop' into form-ui-widgets

Conflicts:
	assets/css/event_create.less
	assets/css/events.less
	static/js/events/forms.js
	static/js/events/index.js
	views/events/map.html
Removed jQuery-ui timespinner element, and misc style cleanup.
Added timepicker widget, and improved calendar styling.
Replaced datepicker with customized version (bundled into jquery-ui).
misc form style improvements
made event-creeate form description box smaller.
added domReady module, loaded main js component, misc cleanup
Fixed image upload to S3, added basic event-create validation, and minor UI tweaks.
minor fixes