Add contributot to the readme
Rewrite board drag and drop with jquery (touch devices, IE, auto-update)
Click on a task redirect to the show page
Add the possibility to remove a task
Assignee change from the board is now a popover
Refresh the board only if the tab is visible
Add meta-tag mobile-web-app-capable
Add meta tag apple-mobile-web-app-capable
Remove apple-mobile-web-app-capable
Add categories for projects and tasks
Add estimate and actual duration fields to a task

The main purpose is to be able to apply the Evidence Based Scheduling method (http://www.joelonsoftware.com/items/2007/10/26.html).