ENYO-2495: CSS use instead of inline style
ENYO-2495: G11n setting up
ENYO-2495: consider for DnD that a file could be seen as a valid target if its parent is a valid one too
ENYO-2495: fix the error output messages
ENYO-2495: fix a bug related to the bad ares node retrieving if the icon is the item selected for the DnD
ENYO-2495: Dead code removing
Merge pull request #337 from enyojs/ENYO-2495

ENYO-2495: Ease DnD action by considering files like their folder parent node if it is valid