created new pages in app/views/tasks with main form elements needed
Merge pull request #33 from lavapj/master

created new pages in app/views/tasks with main form elements needed
changed file names; removed extraneous .html extension on erb files
Merge pull request #36 from lavapj/master

changed file names; removed extraneous .html extension on erb files"
Add total_completed function to Task model - Fixes #31

-Calling 'Task.total_completed(current_user.id)' will give you a
  count of completed tasks for that user