Implementing real counters on scrum bar
Now using only user stories of the project for scrum bar
Links to stories list in the scrum bar
Adding links to User Story in the list from scrum bar
Add controller to add a story
Change Behat feature context strategy
Allow details, points and number of a user story to be null
Implement adding user stories
Add styles to the form
Avoid github zipballs lock
Change the routes parameters for more consistency
Merge remote-tracking branch 'origin/route-prefix' into add-user-story

Conflicts:
	src/MiniTeam/ScrumBundle/Controller/StoryController.php
Update routes parameters
Fix choices of status
Add developers to a project
Add a factory of user stories in the fixtures
Start a story
Fix CS and add PHP-CS-Fixer
Deliver a user story
Fix simple typos from benja-M-A remarks