! Partial progress on moving away from ExtJS
Remove ExtJS
Set up web libraries
Basic layout of page
List loading in Backbone
Switch from a UL to a table
Add priority and context fields
Don't recreate thead/tbody if already present
Add footer with input fields
Add 'complete' column
Add 'action' column
Support completing/uncompleting tasks
Split TaskListView into multiple views
Support adding new tasks
Support deleting tasks
Support editing tasks