Return false from metadata_exists() if the get_$type_metadata filter returns a false value.

props xknown.
fixes #22746.

Built from https://develop.svn.wordpress.org/trunk@27562


git-svn-id: http://core.svn.wordpress.org/trunk@27405 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Cap and theme support checks for the welcome panel.

props MikeHansenMe.
fixes #26276.

Built from https://develop.svn.wordpress.org/trunk@27563


git-svn-id: http://core.svn.wordpress.org/trunk@27406 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Comments dashboard widget: Use the proper class to avoid stretched "unapproved" red lines.

fixes #26910.

Built from https://develop.svn.wordpress.org/trunk@27564


git-svn-id: http://core.svn.wordpress.org/trunk@27407 1a063a9b-81f0-0310-95a4-ce76da25c4cd
In is_serialized(), use substr() rather than array access, for compatibility with multibyte overloading.

props SergeyBiryukov.
fixes #18007.

Built from https://develop.svn.wordpress.org/trunk@27565


git-svn-id: http://core.svn.wordpress.org/trunk@27408 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Filesystem: Fix getchmod() for direct and ssh2 transports, for directories.

props DavidAnderson.
fixes #26598.

Built from https://develop.svn.wordpress.org/trunk@27566


git-svn-id: http://core.svn.wordpress.org/trunk@27409 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Use get_comment_link() in wp_notify_postauthor().

Fixes pagination for the link directly to the moderated comment.

props eatingrules.
fixes #26133.

Built from https://develop.svn.wordpress.org/trunk@27567


git-svn-id: http://core.svn.wordpress.org/trunk@27410 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Avoid notices in wp_notify_postauthor() when a post has no author.

props drozdz.
fixes #26659.

Built from https://develop.svn.wordpress.org/trunk@27568


git-svn-id: http://core.svn.wordpress.org/trunk@27411 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Eleven: only show secondary skip link on pages with secondary content, and remove duplicate title attribute in site title output. Props bcworkz, fixes #26950.
Built from https://develop.svn.wordpress.org/trunk@27569


git-svn-id: http://core.svn.wordpress.org/trunk@27412 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Eleven: make sure top post meta output isn't broken on small screens. Fixes #27061.
Built from https://develop.svn.wordpress.org/trunk@27570


git-svn-id: http://core.svn.wordpress.org/trunk@27413 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Twelve: remove unused `singular` selectors in print CSS block. Props jbkkd, fixes #26866.
Built from https://develop.svn.wordpress.org/trunk@27571


git-svn-id: http://core.svn.wordpress.org/trunk@27414 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Twelve: style `select` element. Props ramonchiara, fixes #27434.
Built from https://develop.svn.wordpress.org/trunk@27572


git-svn-id: http://core.svn.wordpress.org/trunk@27415 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Fourteen: merge two similar strings in Customizer featured content help text. Props celloexpressions, fixes #26647.
Built from https://develop.svn.wordpress.org/trunk@27573


git-svn-id: http://core.svn.wordpress.org/trunk@27416 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Customizer: Use `esc_url_raw` to escape customizer URL settings to prevent double encoding.

props westonruter, ocean90.
fixes #26569.
Built from https://develop.svn.wordpress.org/trunk@27574


git-svn-id: http://core.svn.wordpress.org/trunk@27417 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Clarify that unregister_default_headers() returns void in some situations. fixes #21876.

Built from https://develop.svn.wordpress.org/trunk@27575


git-svn-id: http://core.svn.wordpress.org/trunk@27418 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Heartbeat: Hooks should always receive unslashed data.

This affects the privileged hooks; the unprivileged hooks already received unslashed data.

props johnbillion, TobiasBg.
fixes #27260.

Built from https://develop.svn.wordpress.org/trunk@27576


git-svn-id: http://core.svn.wordpress.org/trunk@27419 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Style the cursor in the image editor in the media modal.

props tomauger.
fixes #27392.

Built from https://develop.svn.wordpress.org/trunk@27577


git-svn-id: http://core.svn.wordpress.org/trunk@27420 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE:
- Update the styling of the image caption and gallery toolbars.
- Fix issue where the hidden clipboard div in wpView.
- Switch to using the pencil dashicon for Edit.
- Add `max-width: 100%;` to images in the gallery preview and adjust column widths.
Props cramdesign, mattheu, gcorne, melchoyce, see #27320, fixes #27376, fixes #27354

Built from https://develop.svn.wordpress.org/trunk@27578


git-svn-id: http://core.svn.wordpress.org/trunk@27421 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE: move the caption and gallery toolbars to the right, fix selected gallery border/outline, see #27320
Built from https://develop.svn.wordpress.org/trunk@27579


git-svn-id: http://core.svn.wordpress.org/trunk@27422 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE gallery preview: fix errors when an image doesn't have/is smaller than  thumbnail size, props gcorne, see #26959
Built from https://develop.svn.wordpress.org/trunk@27580


git-svn-id: http://core.svn.wordpress.org/trunk@27423 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE gallery preview: fix editing the same gallery multiple times. Instead of .data() use .attr('data-...'), jQuery caches the former. Props gcorne, see #26959
Built from https://develop.svn.wordpress.org/trunk@27581


git-svn-id: http://core.svn.wordpress.org/trunk@27424 1a063a9b-81f0-0310-95a4-ce76da25c4cd