- X Shortcode field needs to be longer
- X A default radio button needs to be selected
- X All Images option should say "Images uploaded to this post"
- X Admin labels need to be internationalized
- X Remove duplicate ID attributes in fields
- X Clicking on label should select radio button (needs a LABEL tag)
- X Rename post meta from `_format_gallery_preview_shortcode` to `_format_gallery_shortcode`
- X Utility function to output the proper gallery