Refactored: /users/:id now shows user info and users/:user_id/tasks shows user tasks
added showing completed tasks, either by current user or by all users
added columns Today, Weeklong and Monthlong to the table showing stats on task completions by individual users
ready tasks are now displayed in its own table: no Drop button, User name and Last updated columns added
the table showing completed tasks restyled
statistics on the completed tasks is shown on the 1st page only. all subsequent pages only display the table of tasks
more notes added for showing completed tasks