Commit Graph

6307 Commits

Author SHA1 Message Date
Weston Ruter 84f9592f88 Menus: Prevent non-published posts/pages from being returned in search results for adding as nav menu items.
Re-use the same query vars in searching as when listing posts. Aligns with behavior of nav menus in customizer.

Fixes #33742.
Props welcher, westonruter.

Built from https://develop.svn.wordpress.org/trunk@38584


git-svn-id: http://core.svn.wordpress.org/trunk@38527 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-09-09 04:59:31 +00:00
Aaron Jorbin 7e811d7120 Permalinks: Ensure Pending Review Posts permalink posts link to the draft
[34670] made the displayed permalink clickable. For posts that were pending review, the permalink wasn't being properly generated so the link wouldn't go to the preview.

Props knutsp, enshrined.
Fixes #37423.


Built from https://develop.svn.wordpress.org/trunk@38572


git-svn-id: http://core.svn.wordpress.org/trunk@38515 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-09-08 04:05:31 +00:00
Jeremy Felt c9e60dab17 Media: Sanitize upload filename.
Built from https://develop.svn.wordpress.org/trunk@38538


git-svn-id: http://core.svn.wordpress.org/trunk@38481 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-09-07 13:55:36 +00:00
Pascal Birchler 54720a14d8 Upgrade/Install: Sanitize file name in `File_Upload_Upgrader`.
Built from https://develop.svn.wordpress.org/trunk@38524


git-svn-id: http://core.svn.wordpress.org/trunk@38465 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-09-06 17:26:31 +00:00
John Blackbourn 69c152cee7 Taxonomy: Correct the function description for `wp_ajax_add_link_category()`.
See #37770

Built from https://develop.svn.wordpress.org/trunk@38490


git-svn-id: http://core.svn.wordpress.org/trunk@38431 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-09-01 00:49:29 +00:00
John Blackbourn 01c3ae084b Taxonomy: Update various docs for parameters which are now `WP_Term` objects.
See #37770
See #14162

Built from https://develop.svn.wordpress.org/trunk@38489


git-svn-id: http://core.svn.wordpress.org/trunk@38430 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-09-01 00:40:29 +00:00
Scott Taylor a3ffebce30 Bootstrap: do not go gentle into that good night r38411, r38412, and parts of r38389.
See #36335.

Built from https://develop.svn.wordpress.org/trunk@38470


git-svn-id: http://core.svn.wordpress.org/trunk@38411 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-31 16:31:29 +00:00
Scott Taylor 0eebbed6b2 General: revert [38467], `wp_is_IE()` should not exist.
See #37699.

Built from https://develop.svn.wordpress.org/trunk@38468


git-svn-id: http://core.svn.wordpress.org/trunk@38409 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-31 15:22:31 +00:00
Scott Taylor 021e23e70b General: use a new function, `wp_is_IE()`, instead of the `$is_IE` global in a number of places.
See #37699.

Built from https://develop.svn.wordpress.org/trunk@38467


git-svn-id: http://core.svn.wordpress.org/trunk@38408 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-31 06:42:33 +00:00
Scott Taylor 0419d1e318 Press This: in `wp_ajax_press_this_save_post()` and `wp_ajax_press_this_add_category()`, don't check for a global instance. `WP_Press_This` is a Controller, but not really a Singleton. This also keeps it from being a pluggable class, which it is right now.
See #37699.

Built from https://develop.svn.wordpress.org/trunk@38465


git-svn-id: http://core.svn.wordpress.org/trunk@38406 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-31 06:25:29 +00:00
Scott Taylor 1dc37b77ef Press This: in `get_shortcut_link()`, just check a class constant on `WP_Press_This` instead of instantiating the object and reading an instance prop.
See #37699.

Built from https://develop.svn.wordpress.org/trunk@38462


git-svn-id: http://core.svn.wordpress.org/trunk@38403 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-31 06:08:00 +00:00
Scott Taylor 9383bf8f74 General: use `get_bloginfo( 'version' )` instead of `global $wp_version` in several locations - excluding those locations which reload `version.php` mid-flight.
See #37699.

Built from https://develop.svn.wordpress.org/trunk@38459


git-svn-id: http://core.svn.wordpress.org/trunk@38400 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-31 05:49:37 +00:00
Scott Taylor e5225324a2 Multisite: use `get_current_blog_id()` where applicable, in lieu of plucking the `$blog_id` global from outer space.
See #37699.

Built from https://develop.svn.wordpress.org/trunk@38457


git-svn-id: http://core.svn.wordpress.org/trunk@38398 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-31 04:55:54 +00:00
Scott Taylor 5d94d97b29 List Tables: AJAX actions for List Tables do not need to declare `global $wp_list_table`. List tables on admin screens are in global scope, and they contain hooks that don't pass the the list table as context, hence using globals there so that functions can import them. That problem does not exist in the AJAX actions, which are virtually impossible to hook into as is.
See #37699.

Built from https://develop.svn.wordpress.org/trunk@38455


git-svn-id: http://core.svn.wordpress.org/trunk@38396 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-30 20:07:29 +00:00
Andrea Fercia 99be6ffd3c Accessibility: Hide the "No activity yet" smiley from assistive technologies.
Fixes #37511.

Built from https://develop.svn.wordpress.org/trunk@38448


git-svn-id: http://core.svn.wordpress.org/trunk@38389 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-30 16:14:30 +00:00
John Blackbourn dbdc1c28b1 I18N: Correct various instances of incorrect usage of `esc_attr_e()`.
Fixes #37457
Props henry.wright, afercia

Built from https://develop.svn.wordpress.org/trunk@38424


git-svn-id: http://core.svn.wordpress.org/trunk@38365 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-28 18:06:30 +00:00
Pascal Birchler ac83e26875 Upgrade/Install: After [37687], fix the number of params passed to the upgrade hooks.
`wp_version_check()`, `wp_update_plugins()` and `wp_update_themes()` are all originally hooked to the `upgrader_process_complete` action with zero arguments passed to them. Zero arguments should be passed when re-adding them after translation updates, otherwise the sky will fall.

Props ionutst, gitlost.
Fixes #37731.
Built from https://develop.svn.wordpress.org/trunk@38415


git-svn-id: http://core.svn.wordpress.org/trunk@38356 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-28 10:04:30 +00:00
Scott Taylor f96fff3c9d Admin: allow `WP_Screen` to be checked via autoload in `convert_to_screen()`.
Props kraftbj.
See #36335.

Built from https://develop.svn.wordpress.org/trunk@38414


git-svn-id: http://core.svn.wordpress.org/trunk@38355 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-28 02:25:27 +00:00
Scott Taylor 390ceba6c7 Bootstrap: after r38409 and r38410, revert r38402 which reverted r38399.
This fixes the paths in `wp-vendor/` that were including `src`. I want to drop this in so we can find out what else will break.

See #36335.

Built from https://develop.svn.wordpress.org/trunk@38411


git-svn-id: http://core.svn.wordpress.org/trunk@38352 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-27 22:32:37 +00:00
Dion Hulse 0e31a46161 Bootstrap: Revert [38399] as it's broken `/build/` and subsequently core.svn.wordpress.org.
The generated classmaps reference `/src/` files and operates in the assumption that the base directory is one level above `wp-settings.php`, which it isn't after our build processes are run.

See #36335

Built from https://develop.svn.wordpress.org/trunk@38402


git-svn-id: http://core.svn.wordpress.org/trunk@38343 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-27 14:37:32 +00:00
Scott Taylor 6a529648cf Bootstrap: Autoload classes using a Composer-generated PHP 5.2-compatible Autoloader.
* `wp-admin` and `wp-includes` are scanned for classes to autoload
* Several 3rd-party and Ryan McCue-shaped libraries are excluded when the classmap is generated, see `composer.json`: `autoload.exclude-from-classmap`
* `wp-vendor/autoload_52.php` is included at the top of `wp-settings.php` - no changes need to be made to unit tests to include the autoloader
* An avalanche of `require()` and `require_once()` calls that loaded class files have been removed from the codebase.

The following files have been added to `svn:ignore` - they are not 5.2-compatible and fail during pre-commit:
* src/wp-vendor/autoload.php
* src/wp-vendor/composer/autoload_real.php
* src/wp-vendor/composer/autoload_static.php
* src/wp-vendor/composer/ClassLoader.php

We favor these files instead:
* src/wp-vendor/autoload_52.php
* src/wp-vendor/composer/autoload_real_52.php
* src/wp-vendor/composer/ClassLoader52.php

When new PHP classes are added to the codebase, simply run `composer install` or `composer update` from the project root to update the autoloader.

The future is now.

See #36335.

Built from https://develop.svn.wordpress.org/trunk@38399


git-svn-id: http://core.svn.wordpress.org/trunk@38340 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-27 09:15:29 +00:00
Scott Taylor 85d63f2af5 Press This: the file for the `WP_Press_This` class should not produce side effects. Similar to what we did in r38355 for `WP_Site_Icon`, drop the instances of `global` instantiation for `$wp_press_this` via loading the file. The variable can be set inline when necessary. In most of those places, if the global is already set, the file does not load and stomp it currently.
See #37699.

Built from https://develop.svn.wordpress.org/trunk@38397


git-svn-id: http://core.svn.wordpress.org/trunk@38338 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-27 06:07:29 +00:00
Scott Taylor 06aa510d56 List Tables: move `_WP_List_Table_Compat` into its own file.
See #37827.

Built from https://develop.svn.wordpress.org/trunk@38392


git-svn-id: http://core.svn.wordpress.org/trunk@38333 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-26 22:23:29 +00:00
Scott Taylor 11216c7069 FTP: ensure that there is only one class named `ftp`, which is what is expected in the loading of this arcane library. This ensures that an autoload generator, something along the lines of Composer, won't hiccup when it gets to these files.
See #36335.

Built from https://develop.svn.wordpress.org/trunk@38380


git-svn-id: http://core.svn.wordpress.org/trunk@38321 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-26 18:47:29 +00:00
Scott Taylor b1c6049be4 Upgrade/Install: `wp-admin/includes/class-wp-upgrader-skins.php` is unused, remove it. All of the same includes are loaded in `class-wp-upgrader.php`.
See #37827.

Built from https://develop.svn.wordpress.org/trunk@38379


git-svn-id: http://core.svn.wordpress.org/trunk@38320 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-26 18:25:30 +00:00
Scott Taylor 76c7864367 Load: remove `class-feed.php` (There is no class named `Feed` or `WP_Feed`, it just loads other classes) and, instead, move the `require` calls to the only place they are ever included: inside `fetch_feed()`. This simplifies the include path.
Tested with this feed in a widget: `http://rss.nytimes.com/services/xml/rss/nyt/HomePage.xml`.

See #36335.

Built from https://develop.svn.wordpress.org/trunk@38374


git-svn-id: http://core.svn.wordpress.org/trunk@38315 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-26 17:53:30 +00:00
Scott Taylor 524effb58f Load: remove `session.php` and, instead, move the 2 `require` calls to `wp-settings.php`. This simplifies the include path.
See #36335.

Built from https://develop.svn.wordpress.org/trunk@38373


git-svn-id: http://core.svn.wordpress.org/trunk@38314 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-26 17:45:17 +00:00
John Blackbourn 94c8ca0f2e Docs: Correct various documentation around `object` and `stdClass` types.
See #37770

Built from https://develop.svn.wordpress.org/trunk@38369


git-svn-id: http://core.svn.wordpress.org/trunk@38310 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-26 16:49:45 +00:00
Scott Taylor 6d87157eb9 i18n: move `is_rtl()` to `l10n.php` (which loads way earlier). Load `WP_Locale` file in `wp-settings.php`. Retire `wp-includes/locale.php` - it only loaded the class and the one function, `is_rtl()`. If someone loaded this file for fun somewhere else, it would be a fatal error.
See #37827.

Built from https://develop.svn.wordpress.org/trunk@38364


git-svn-id: http://core.svn.wordpress.org/trunk@38305 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-26 10:20:29 +00:00
Scott Taylor ff59281441 OEmbed: move `_wp_oembed_get_object()` to `embed.php`, where all of the other embed functions live. `WP_oEmbed` is then in a file by itself. Load `class-oembed.php` in `wp-settings.php` and remove extraneous include calls.
See #37827.

Built from https://develop.svn.wordpress.org/trunk@38361


git-svn-id: http://core.svn.wordpress.org/trunk@38302 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-26 09:49:28 +00:00
Scott Taylor 9ce58d9d86 Site Icon: There is no good reason for `class-wp-site-icon.php` to drop a global instance of itself whenever the file is loaded. The lone use of the `global` instance of `WP_Site_Icon` is in an AJAX action that provides virtually no way to override - the file is loaded immediately before the `global` is used.
Let us remove the `$wp_site_icon` global. I will fall on the sword if this comes back to bite us (waiting with bated breath).

See #37699.

Built from https://develop.svn.wordpress.org/trunk@38355


git-svn-id: http://core.svn.wordpress.org/trunk@38296 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-25 19:09:35 +00:00
Scott Taylor b7812bd416 AJAX: add a new function, `wp_doing_ajax()`, which can replace... (wait for it...) `DOING_AJAX` checks via the constant.
Props Mte90, sebastian.pisula, swissspidy.
Fixes #25669.

Built from https://develop.svn.wordpress.org/trunk@38334


git-svn-id: http://core.svn.wordpress.org/trunk@38275 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-23 14:33:30 +00:00
Scott Taylor 6f9f3b0c56 Media: remove `function_exists()` call for `ini_get()` in `_load_image_to_edit_path()`.
Props dd32.
Fixes #37681.

Built from https://develop.svn.wordpress.org/trunk@38333


git-svn-id: http://core.svn.wordpress.org/trunk@38274 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-23 14:24:30 +00:00
Sergey Biryukov 92343be1f4 I18N: Allow for WordPress Plugin/Theme Directory URLs to be localized.
Props ramiy.
Fixes #37501.
Built from https://develop.svn.wordpress.org/trunk@38325


git-svn-id: http://core.svn.wordpress.org/trunk@38266 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-23 01:19:39 +00:00
Sergey Biryukov fee26cf741 I18N: Replace unnecessary context with a translator comment for `%s Sites` string in `network_step1()`.
Props ramiy.
Fixes #37777.
Built from https://develop.svn.wordpress.org/trunk@38323


git-svn-id: http://core.svn.wordpress.org/trunk@38264 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-23 00:17:27 +00:00
Scott Taylor 5025f72fd3 Nav Menus: remove unnecessary variable assignment in `wp_nav_menu_item_post_type_meta_box()`.
See #37771.

Built from https://develop.svn.wordpress.org/trunk@38311


git-svn-id: http://core.svn.wordpress.org/trunk@38252 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-22 20:58:28 +00:00
Drew Jaynes 22adda2aa0 Hooks: Standardize naming of dynamic hooks to use interpolation vs concatenation.
Benefits gained in discoverability and self-documentation throughout core trump the negligible performance hit in using interpolation in hook names.

Props ramiy.
See #37748.

Built from https://develop.svn.wordpress.org/trunk@38307


git-svn-id: http://core.svn.wordpress.org/trunk@38248 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-22 18:25:31 +00:00
Scott Taylor d31456b615 Media: add a function, `wp_get_additional_image_sizes()`, that wraps the retrieval of the global `$_wp_additional_image_sizes`. Removes 6 global imports.
See #37699.

Built from https://develop.svn.wordpress.org/trunk@38303


git-svn-id: http://core.svn.wordpress.org/trunk@38244 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-22 04:37:28 +00:00
Scott Taylor 7ac88c02fa Media: when calling `pathinfo()`, also pass a `PATHINFO_*` constant to avoid array notices for unset keys.
Props JaworskiMatt.
Fixes #37608.

Built from https://develop.svn.wordpress.org/trunk@38294


git-svn-id: http://core.svn.wordpress.org/trunk@38235 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-20 23:36:28 +00:00
John Blackbourn 594b88661a Permalinks: Correct the documentation for the `get_sample_permalink` filter, and improve the documentation for the `get_sample_permalink()` function.
Props sebastian.pisula for the original patch
Fixes #37682

Built from https://develop.svn.wordpress.org/trunk@38272


git-svn-id: http://core.svn.wordpress.org/trunk@38213 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-17 18:30:30 +00:00
Drew Jaynes 1691196110 Docs: Add a period missed in an argument description in [38253] for #36338.
Built from https://develop.svn.wordpress.org/trunk@38254


git-svn-id: http://core.svn.wordpress.org/trunk@38195 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-13 17:44:28 +00:00
Drew Jaynes 51810b926a Docs: Add documentation for all arguments accepted by `export_wp()`.
Props theMikeD for the initial patch.
Fixes #36338.

Built from https://develop.svn.wordpress.org/trunk@38253


git-svn-id: http://core.svn.wordpress.org/trunk@38194 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-13 17:43:28 +00:00
Dominik Schilling 0d2106e2eb Upgrader: Rename `class-wp-automatic-upgrader.php` to `class-wp-automatic-updater.php`.
The class is named `WP_Automatic_Updater` not `WP_Automatic_Upgrader` like all the other upgrader classes. 

Introduced in [37409].
See #37628.
Built from https://develop.svn.wordpress.org/trunk@38242


git-svn-id: http://core.svn.wordpress.org/trunk@38183 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-10 19:51:29 +00:00
Andrew Ozz 0d4320fcbc Update/Install error messages: do not escape from the template, escape the error message string before inserting it.
Props swissspidy, ocean90.
Fixes #37623 for trunk.
Built from https://develop.svn.wordpress.org/trunk@38240


git-svn-id: http://core.svn.wordpress.org/trunk@38181 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-10 19:03:31 +00:00
Dominik Schilling 771fc167b6 Media: In `_wp_handle_upload()` use `call_user_func_array()` to call the upload error handler.
The default error handler `wp_handle_upload_error()` expects a reference for the first parameter but `call_user_func()` doesn't pass parameters by reference. The current code didn't produce any issues until now. PHP 7.0.9 (and PHP 7.1) is now stricter and prevents calling the error handler with a warning:
> PHP Warning:  Parameter 1 to wp_handle_upload_error() expected to be a reference, value given.

To restore the error handler `_wp_handle_upload()` now uses `call_user_func_array()`.

Props jbrinley.
Props jorbin for review.
Fixes #37570.
Built from https://develop.svn.wordpress.org/trunk@38235


git-svn-id: http://core.svn.wordpress.org/trunk@38176 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-09 21:54:30 +00:00
Dominik Schilling 9970c6ca5a Dashboard: Don't escape widget titles in screen reader text.
Introduced in [37972]. The title for the Quick Draft widget contains HTML to provide a JS/no-JS version.

Props SergeyBiryukov for review.
See #37595.
Fixes #37594.
Built from https://develop.svn.wordpress.org/trunk@38225


git-svn-id: http://core.svn.wordpress.org/trunk@38166 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-09 09:07:30 +00:00
Aaron Jorbin b3b32f22a1 Updates: Improve experience for Bulk Actions when FTP is dismissed.
Before this change, when a bulk update was canceled due dismissing the FTP credentials modal, part of the actions didn't get canceled.  This meant the "There is a new version of…” notices become blank and the updates you had checked became unchecked.  Now, the notices remain and you are essentially returned to the screen you had before. Strings are also updated to improve ARIA usage.

Fixes #37563.
Props ocean90, swissspidy, obenland, afercia.


Built from https://develop.svn.wordpress.org/trunk@38221


git-svn-id: http://core.svn.wordpress.org/trunk@38162 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-09 01:14:28 +00:00
Dominik Schilling 572a9cb488 Update/Install: Replace "error" and "-1" failure messages with a more meaningful one.
* "-1" is an invalid nonce error, show 'An error has occurred. Please reload the page and try again.'.
* "error" means that the connection to the server was lost, show 'Connection lost or the server is busy. Please try again later.'.
* Escape the message in `wp-updates-admin-notice` because the response may include HTML.
* Remove HTML tags in `wp.updates.isValidResponse()` to make PHP's error messages more readable.

Props azaozz for review.
Fixes #37583.
Built from https://develop.svn.wordpress.org/trunk@38205


git-svn-id: http://core.svn.wordpress.org/trunk@38146 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-05 19:28:30 +00:00
John Blackbourn ab052361a3 Docs: Correct and clarify various `@since` docs.
Fixes #37562

Built from https://develop.svn.wordpress.org/trunk@38201


git-svn-id: http://core.svn.wordpress.org/trunk@38142 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-04 22:54:31 +00:00
Dominik Schilling 58d772a02f Upgrade/Install: Make some install/update failures more verbose.
An upgrader class is used in conjunction with an upgrader skin class. A skin class handles the logging for an upgrade and informs a user about the progress and failures.
The current Ajax install/update handlers are using the `Automatic_Upgrader_Skin` class because during an Ajax request no output is intended. The difference between Ajax updates and automatic updates is that you will see the full log (usually by email) while Ajax updates focus only on success or failure. For that `Automatic_Upgrader_Skin` has one disadvantage: It doesn't provide a way to retrieve failure messages which were passed through `WP_Upgrader_Skin::error()` by the upgrader.
To solve this issue a new skin `WP_Ajax_Upgrader_Skin` has been introduced. The skin extends `Automatic_Upgrader_Skin` and overrides the `error()` and `feedback()` methods to intercept all errors, which can be a `WP_Error` object or a string.

This updates all four Ajax handler for installing/updating themes/plugins to use the new skin. They now also check the skin for any intercepted errors and pass them on to the user.

Props flixos90, obenland, ocean90.
Props DrewAPicture, pento for review.
Fixes #37531.
Built from https://develop.svn.wordpress.org/trunk@38199


git-svn-id: http://core.svn.wordpress.org/trunk@38140 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-08-04 22:18:30 +00:00