Add the default folder_id to 0.
Add the default folder_id to 0.

Fixes #106

AsgardCms/Media,MentallyFriendly/Media,mikemand/Media,ruscon/Media,zedee/Media,gabva/Media,oimken/Media,oimken/Media,mikemand/Media,AsgardCms/Media,MentallyFriendly/Media,zedee/Media,mikemand/Media,ruscon/Media,oimken/Media,zedee/Media,AsgardCms/Media,gabva/Media