Update the media upload interfaces to match new admin design:

* Replace separate progress bar designs on media-new.php and modal media uploader with a single consistent design
* Remove side borders from list of uploads on media-new.php
* Restyle the selected photo border and checkbox on modal media uploader
* Add a Media Uploader section to color schemes with progress bar and selected photo styles

Fixes #26147. Props melchoyce, iammattthomas.



git-svn-id: https://develop.svn.wordpress.org/trunk@26309 602fd350-edb4-49c9-b593-d223f7449a82
Making a few more adjustments to the uploader progress bar styles. See #26147.

git-svn-id: https://develop.svn.wordpress.org/trunk@26310 602fd350-edb4-49c9-b593-d223f7449a82