Merge pull request #18 from maxailloud/master

Adding type form select field to have them the from-control class
Merge pull request #19 from maxailloud/master

Correct use of label_width
Fixing form error pluralization.
Merge pull request #20 from ngodfraind/master

Fixing form error pluralization.
Simplify the way errors are displayed.
Merge pull request #21 from ngodfraind/master

Simplify the way errors are displayed.
set travis to test symfony 2.4
cs fix
Pass RouterInterface instead of Router itself

Needed to be compatible with CMF Chained Router
Merge pull request #24 from rgb-/patch-1

Pass RouterInterface instead of Router itself