Theme Installer: Use 'browse' instead of 'sort' for routes.

see #27055.


git-svn-id: https://develop.svn.wordpress.org/trunk@28035 602fd350-edb4-49c9-b593-d223f7449a82
Theme Installer: Left/right arrow keys in the overlay.

props adamsilverstein.
see #27521.


git-svn-id: https://develop.svn.wordpress.org/trunk@28036 602fd350-edb4-49c9-b593-d223f7449a82
Theme Installer: Combine 'Layout' and 'Columns' filters so 'Features' can span two columns.

see #27055.


git-svn-id: https://develop.svn.wordpress.org/trunk@28037 602fd350-edb4-49c9-b593-d223f7449a82
Theme Installer: Show 'Preview' button for installed themes.

props adamsilverstein.
see #27055, see #27708.


git-svn-id: https://develop.svn.wordpress.org/trunk@28038 602fd350-edb4-49c9-b593-d223f7449a82
Media Templates: More escaping rather than interpolation. see #21785.


git-svn-id: https://develop.svn.wordpress.org/trunk@28039 602fd350-edb4-49c9-b593-d223f7449a82
Inline documentation for hooks in wp-admin/includes/class-wp-upgrader-skins.php.

Fixes #27711.


git-svn-id: https://develop.svn.wordpress.org/trunk@28040 602fd350-edb4-49c9-b593-d223f7449a82
Part I of inline documenation for hooks in wp-includes/post.php.

Adds docs for the following hooks:
* `get_attached_file`
* `update_attached_file`
* `_wp_relative_upload_path`
* `post_type_labels_{$post_type}`
* `edit_{$field}`
* `{$field_no_prefix}_edit_pre`
* `edit_post_{$field}`
* `pre_{$field}`
* `{$field_no_prefix}_save_pre`
* `pre_post_{$field}`
* `{$field}_pre`
* `$field`
* `post_{$field}`
* `wp_count_posts`
* `wp_count_attachments`
* `post_mime_types`
* `wp_insert_post_empty_content`

See #25376.


git-svn-id: https://develop.svn.wordpress.org/trunk@28041 602fd350-edb4-49c9-b593-d223f7449a82
Clarify documentation for hooks in `sanitize_post_field()`.

* `edit_post_{$field}` pairs with `edit_{$field}`
* `pre_post_{$field}` pairs with `pre_{$field}`
* `post_{$field}` pairs with `{$field}`

As the above pairs' docs are unnecessarily duplicative, the second sets of docs have been removed. Also, the "duplicates" are purposely not marked as such in this case as the hook names differ. Also remove `@deprecated` tags mistakenly left in in [28041].

See #25376.


git-svn-id: https://develop.svn.wordpress.org/trunk@28042 602fd350-edb4-49c9-b593-d223f7449a82
DFW:
- Move the word count and "Just Write" to a fixed bar at the bottom.
- Fix responsive mode to 480px. Narrower screens will have a scroll bar.
- Hide the Help button on screens < 480px, move the Save button to the right, make it bigger to match the others, and other responsive mode fixes.
Fixes #26907, see #27709

git-svn-id: https://develop.svn.wordpress.org/trunk@28043 602fd350-edb4-49c9-b593-d223f7449a82
Widget Customizer: Fix widget filtering.

props westonruter.
fixes #27451.

git-svn-id: https://develop.svn.wordpress.org/trunk@28044 602fd350-edb4-49c9-b593-d223f7449a82
Precommit cleanup for theme.js, editor.css amd wpdialogs/plugin.js, See #27055, #26907, #16284

git-svn-id: https://develop.svn.wordpress.org/trunk@28045 602fd350-edb4-49c9-b593-d223f7449a82
Move `toolbar` declaration after the `:visible` check, like it was before [28019].

props kovshenin.
fixes #24859.

git-svn-id: https://develop.svn.wordpress.org/trunk@28046 602fd350-edb4-49c9-b593-d223f7449a82
Theme Installer: Prevent default events for "Upload Theme" and "Browse" buttons.

see #27055.

git-svn-id: https://develop.svn.wordpress.org/trunk@28047 602fd350-edb4-49c9-b593-d223f7449a82
Restore `GalleryAdd()` and `GalleryEdit()` in `media-views.js` to ensure back-compat.

See [27362].



git-svn-id: https://develop.svn.wordpress.org/trunk@28048 602fd350-edb4-49c9-b593-d223f7449a82
Theme installer keyboard fixes. Updates [28033] and [28036].

props matveb.
see #27521.


git-svn-id: https://develop.svn.wordpress.org/trunk@28049 602fd350-edb4-49c9-b593-d223f7449a82
Escape playlist data in templates.

props wonderboymusic.
fixes #27710.


git-svn-id: https://develop.svn.wordpress.org/trunk@28050 602fd350-edb4-49c9-b593-d223f7449a82
Don't show featured images for image attachments. Remove abstractions for now.

fixes #27673.


git-svn-id: https://develop.svn.wordpress.org/trunk@28051 602fd350-edb4-49c9-b593-d223f7449a82
3.9 about page text, rough cut.

props markjaquith, nacin.
see #27713.


git-svn-id: https://develop.svn.wordpress.org/trunk@28052 602fd350-edb4-49c9-b593-d223f7449a82
Harden HMAC verification. props duck_.


git-svn-id: https://develop.svn.wordpress.org/trunk@28053 602fd350-edb4-49c9-b593-d223f7449a82
3.9-RC1


git-svn-id: https://develop.svn.wordpress.org/trunk@28058 602fd350-edb4-49c9-b593-d223f7449a82