Change fetch routes for task collections to match current back-end API
Put status & priority in same order as in task view
Fix typo, errors caused by previous changes
Pre-fill update form instead of using placeholders
Add jQuery UI for animations
Incorporate jQuery UI in a basic way
Make items 'sortable' instead of 'droppable'
Tasks can be moved on the list now. No changes persisted.
Change flow of initialize() method so collection is fetched in initialize() instead of render
Cause task status to be changed when dragged, dropped