Add ability to edit and update users
Add feature for deleting users,
             including protection against self-deletion
Make projects only visible to users with
permission to see them
Don’t show projects that a
 user doesn't have permission to see
Restrict reading tickets to correct project scope
Restrict creating tickets to only users
               who have permissions to do it
Restrict ticket updating to only
               those who have permission
Restrict destroy action to only people with permission
Restrict actions in TicketsController based
               on permissions and hide links
Add permissions screen for admins
Add creating, editing, updating and deleting
               tickets to assigning permissions interface
Add a seeds file
Add the ability to attach a file to a ticket
Users can now upload 3 files at a time
Uploaded Assets are now strictly served through
  the FilesController
Provide an 'Add another file' link that uses Javascript
               so that users can upload more than one file
Users can now leave comments on tickets
When updating a comment's status,
               also update the ticket's status
Display a comment's state transition
Pretty-ify states.