#913 - Initial updates on file uploads
#913 - Can add categories and subcategories for file upload in admin
#913 - Add updates to multiple file upload on admin
#913 - Fix file advance permission on file add on front end and finalize multiple file upload on admin
#913 - Finalize Add to category on list view of files in admin
Merge branch 'master' of https://github.com/tendenci/tendenci