* Adds the code required to include the new media scripts, styles, and settings to `media_button()`.
* Improves script dependencies, namely making `media-upload` require `media-views`.
* Some CSS tweaks for the making the new button work well with QuickPress.
see #21390, fixes#22021.
git-svn-id: https://develop.svn.wordpress.org/trunk@22072 602fd350-edb4-49c9-b593-d223f7449a82