add ability to edit task in a list
add ability to add task to a specific list
add ability to delete task in specific list
add permalink to url path instead of id

modified param to permalink
permalink defined in ListsController, create action
used find_by_param for methods in ListsController
to check if there's a more elegant way to do this. This is ugly
add some styling

background notepaper image
improve styling of delete button for task in a list