Adds Add a new task scenario
Adds Add a new item prototype view
Adds TaskCtrl.add unit test
Adds TaskCtrl.add implementation
Adds Mark task as done scenario
Adds Mark task as done prototype view
Adds TaskCtrl.remove unit test
Adds TaskCtrl.remove implementation
Adds Add a new task with priority scenario
Adds task priority prototype view
Adds Task priority controller test
Adds task priority to TaskCtrl
Adds Priority filter scenario
Adds Priority filter to the view
Adds Search tasks scenario
Adds Search tasks view
Refactors fixture task names
Adds REST resource controller test
Refactors controller to use REST back end