Add bottom margin to 'figure' element.
Use $items variable instead of $images.
Pass the $post object to media functions.
Allow developers to turn off the post meta box and just use the customizer or a custom setup.
Add the 'one-five' style to handle a base stylesheet based off 1.5 line-height and margins.
Update base stylesheet versions.
Revert back to the earlier way of handling post formats.  If the theme doesn't support a specific 'structured-post-format', the framework will take over.