Added build_addfile
Added addfile styling
Added auto register for addfile
Moved media arg to just setImage and editGallery. Fixed addFile select hook.
Added make_label()
Fixed submenu registration for post types.
Fixed key naming on single field expansion in register_meta_box
Removed useless callback check on features args.
Commenting cleanup on run_content_setups
Added @since tags to updated methods.
Added @since tags to updated methods.
Updated change log and version number.