feature #677 Highlight required fields in forms (Pierstoval)
feature #677 Highlight required fields in forms (Pierstoval)

This PR was merged into the master branch.

Discussion
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Highlight required fields in forms

Note: it's prepended with a non-breakable space, it's important because with a classic one, HTML ignores it.

Before:
![capture d ecran 2015-12-22 a 17 55 54](https://cloud.githubusercontent.com/assets/3369266/11960906/4cd6d510-a8d5-11e5-92ae-6685b6debf62.png)

After:
![capture d ecran 2015-12-22 a 17 56 01](https://cloud.githubusercontent.com/assets/3369266/11960910/517a6e42-a8d5-11e5-94ce-138c89bf7457.png)

Commits
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c6d4920 Highlight required fields in forms

javiereguiluz/EasyAdminBundle,gabiudrescu/EasyAdminBundle,yceruto/EasyAdminBundle,OskarStark/EasyAdminBundle,ogizanagi/EasyAdminBundle,yceruto/EasyAdminBundle,gabiudrescu/EasyAdminBundle,ogizanagi/EasyAdminBundle,OskarStark/EasyAdminBundle,ogizanagi/EasyAdminBundle,gabiudrescu/EasyAdminBundle,ogizanagi/EasyAdminBundle,javiereguiluz/EasyAdminBundle,OskarStark/EasyAdminBundle,yceruto/EasyAdminBundle