Adding new filter to acf_the_content

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Adding missing localization support for file fuel

http://support.advancedcustomfields.com/forums/topic/localization-issues-with-the-file-field/#post-11957
Signed-off-by: Elliot Condon <e@elliotcondon.com>