Detect and handle symlinking of plugins in plugin_basename().

props rmccue, MikeSchinkel, jdgrimes.
see #16953.

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git-svn-id: http://core.svn.wordpress.org/trunk@27024 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Edit image in TinyMCE:
- Add a "toolbar" at the top of the image with two buttons: Edit and Delete.
- Don't open the edit modal on second click on the image. Makes the "edit" button somewhat pointless and can sometimes trigger after resizing the image.
- When the image has caption: attempt to prevent IE11 from making the caption element resizable and wrapping it in thick border.
- When the caret is inside a caption next to the image, pressing Enter will create a new <p> tag above the caption.
- Hide the image toolbar on drag, cut, align.
Props gcorne, see #24409.
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git-svn-id: http://core.svn.wordpress.org/trunk@27025 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Bump the TinyMCE version, see #24409.

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git-svn-id: http://core.svn.wordpress.org/trunk@27026 1a063a9b-81f0-0310-95a4-ce76da25c4cd
In `remove_user_from_blog()`, avoid a potentially expensive `IN` query before invalidating the reassigned post and link caches.

Props kovshenin.
Fixes #25545. (Again.)


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git-svn-id: http://core.svn.wordpress.org/trunk@27027 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Rather than removing the 3rd argument in `WP_Object_Cache::delete()`, mark it as `$deprecated`.

See [27064].
Props SergeyBiryukov.
Fixes #22478.


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git-svn-id: http://core.svn.wordpress.org/trunk@27028 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Partially revert [27101], [27102], [27141], and [27142]. Those commits introduced new functions to sync up cache invalidation events. The current commit alters existing internals.

"The cache invalidation with static was introduced in r9102 with version 2.7. Multisite wasn't in core back then, so something like switch_to_blog() wasn't a concern, but now it breaks if you switch the blog in between calls to clean_term_cache."

This solution is simpler. All unit tests pass. Removes unnecessary tests linked to removed functions.

Props kovshenin.
Fixes #14485, #22526.


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git-svn-id: http://core.svn.wordpress.org/trunk@27029 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Use jQuery.prop('checked') instead of jQuery.attr('checked'), which is deprecated.
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git-svn-id: http://core.svn.wordpress.org/trunk@27030 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE: fix styling in the Charmap modal so the click targets are as large as the table cells. Remove the "Close" button and close the modal after inserting the special char. Fixes #27107.
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git-svn-id: http://core.svn.wordpress.org/trunk@27031 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Don't iterate over `$wp_query->posts` in `update_post_thumbnail_cache()` if it is empty. Adds unit tests.

Props SergeyBiryukov, for the original patch.
Fixes #26321.
 

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git-svn-id: http://core.svn.wordpress.org/trunk@27032 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Merge two similar strings. props pavelevap. fixes #27096.
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git-svn-id: http://core.svn.wordpress.org/trunk@27033 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE: add image based placeholders for audio and video shortcodes. Props wonderboymusic, see #27016.
Built from https://develop.svn.wordpress.org/trunk@27169


git-svn-id: http://core.svn.wordpress.org/trunk@27034 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Update Backbone from 1.0 to 1.1.

Also update Underscore to 1.6. Includes the development versions of both, which are not included in the build.

Here is Backbone's changelog:
 * Made the return values of Collection’s `set`, `add`, `remove`, and `reset` more useful. Instead of returning `this`, they now return the changed (added, removed or updated) model or list of 
models. (This means they can no longer be chained.)
 * Backbone Views no longer automatically attach options passed to the constructor as `this.options` and Backbone Models no longer attach `url` and `urlRoot` options, but you can do it yourself if you prefer. (But if you extend `wp.Backbone.View`, options will be attached for you.)
 * All `"invalid"` events now pass consistent arguments. First the model in question, then the error object, then options.
 * You are no longer permitted to change the id of your model during `parse`. Use `idAttribute` instead.
 * On the other hand, `parse` is now an excellent place to extract and vivify incoming nested JSON into associated submodels.

See [27171] (next commit) for changes made to WordPress to be compatible with Backbone 1.1.

props gcorne, georgestephanis.
see #26799.

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git-svn-id: http://core.svn.wordpress.org/trunk@27035 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Update media-views and wp.Backbone.View for Backbone 1.1.

 * Collection set/add/remove/reset methods now return models, not `this`, so they can no longer be chained.
 * Options passed to Backbone.View's constructor are no longer attached automatically. wp.Backbone.View now does this automatically.

See [27170] for Backbone 1.1 itself.

props gcorne.
fixes #26799.

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git-svn-id: http://core.svn.wordpress.org/trunk@27036 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Optimize 69 images (of 127) using the new Grunt task. (See [27172].)

fixes #25169.

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git-svn-id: http://core.svn.wordpress.org/trunk@27037 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Dev/build tools: Use grunt-autoprefixer for CSS vendor prefixes.

We'll be using it for two distinct tasks:
 * Core CSS files will keep prefixes. `grunt autoprefixer:core` will update files directly in src/ as a pre-commit step, rather than doing it on build.
 * Color CSS files will receive prefixes when they are built.

This commit:
 * Adds prefixes we were missing to core CSS.
 * Removes prefixes that we no longer need from core CSS.
 * Removes all prefixes from colors CSS.

props ocean90.
fixes #27078.

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git-svn-id: http://core.svn.wordpress.org/trunk@27038 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE: add support for audio and video shortcodes without closing, fix jshint warning, see #27016.
Built from https://develop.svn.wordpress.org/trunk@27177


git-svn-id: http://core.svn.wordpress.org/trunk@27039 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Multisite: Add get_network_by_path() and wp_get_network() to begin cleanup of multisite load.

Tries to get network detection under control by simplifying wpmu_current_site(). It now also pops off each subdomain to find a more general match. Adds unit tests for get_network_by_path() and a new network factory for unit tests.

Much of this is likely to change in 3.9 as more of ms-load.php and ms-settings.php gets hacked to bits.

props jeremyfelt.
see #27003.

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git-svn-id: http://core.svn.wordpress.org/trunk@27040 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE: when clicking on a character in the Charmap modal, don't close it if the Crtl key is pressed. Makes it possible to insert several special chars in a row. See #27107.
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git-svn-id: http://core.svn.wordpress.org/trunk@27041 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Rename the old media.css file, used for the pre-3.5 media library. Clean up script-loader CSS registrations.

see #26669.

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git-svn-id: http://core.svn.wordpress.org/trunk@27042 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE: wrap the toolbars buttons on narrow screens, props mikemanger, fixes #26882
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git-svn-id: http://core.svn.wordpress.org/trunk@27043 1a063a9b-81f0-0310-95a4-ce76da25c4cd