Styled task list items

Styled task list items
Added an empty view to TodayFragment

Added an empty view to the TodayFragment, so when the list is empty, it
tells the user what to do.
Empty today button shows first list

The button on the empty today page now works.  It brings the user to the
first task list page.
Added second state to empty panel

1) Empty panel now has two states; missing task list and empty task
list.
2) Added animation to bring in the empty task list frame when the user
creates a new task list.