IETF language changes in MediaElement:
https://github.com/johndyer/mediaelement/pull/1270/

Reverts [28801].
Fixes #29182.


git-svn-id: https://develop.svn.wordpress.org/trunk@30637 602fd350-edb4-49c9-b593-d223f7449a82
When deleting media grid attachments, wait until the server responds before removing the model from its collection.

Props 5um17.
Fixes #30457.


git-svn-id: https://develop.svn.wordpress.org/trunk@30638 602fd350-edb4-49c9-b593-d223f7449a82
Fix edge-case in media cropping where selection and destination are the same size.

Adds unit tests.

Props mboynes.
Fixes #19793.


git-svn-id: https://develop.svn.wordpress.org/trunk@30639 602fd350-edb4-49c9-b593-d223f7449a82
Adjust the RegEx in `wp_check_filetype()` to be aware that query strings are thing that exist sometimes in URLs.

Adds unit tests.

Props voldemortensen.
Fixes #30377.


git-svn-id: https://develop.svn.wordpress.org/trunk@30640 602fd350-edb4-49c9-b593-d223f7449a82
Editor: no pointer for DFW v2 when editor-scrolling is not used. Pass `$post_type` in the `wp_editor_expand` filter. See #30458.

git-svn-id: https://develop.svn.wordpress.org/trunk@30641 602fd350-edb4-49c9-b593-d223f7449a82