[NEW] Add .btn-icon class for buttons containing only an icon (to fix the width)
[FIX] Update to bootstrap 3 and use btn-icon.
[FIX] Fixes in document list: rendering when empty, hide pagination on external collection.
[FIX] Bootstrap 3 migration.
[NEW] Add Logout action in front office.
[REFACTOR] Use locale keys instead of hard coded texts.
[FIX] Locale keys.
[REFACTOR] Use btn-icon class.
Merge pull request #558 from intportg/dev

Logout action + fixes and refactoring