Updated file_entity to latest dev

http://drupalcode.org/project/file_entity.git/commit/945bf90b283ef56a48bdb5a7597ac7cfcbf74809
Updated media to latest dev

http://drupalcode.org/project/media.git/commit/69e9d2e525ec7311a48a6c8ba8be7e056fff6911
Updated sitenow_media to work with latest file entity and media versions