Added database entities
Added FOSUserBundle
Updated UserBundle implementation, database entities, controllers and views
Updated database entities
Fixed mapping errors
Updated database relation, generated CRUD and routes
Updated database entities and Forms
Updated controllers and views
Added awesome post-it view, updated controllers, database relation, forms and views
Updated views (javascript and post-it), entities repositories, controllers and task form
Implemented collaborators management
Enhanced security in task management
Fixed a task controller error
Updated task view with custom popup
Implemented task state change with ajax
Profiling: added joins to minimize database requests for sprint_show view
Implemented delete actions, dialog popup, updated task form, changed update redirect
Changed date to datetime, implemented UserStory isFinished boolean update on task state change
Prevented UserStory change when editing a task or a test
Implemented UserStory isFinished boolean update on task create or delete