Enable previews for all pages of multi-page posts. Fixes #17157. Props solarissmoke, chrisscott

git-svn-id: http://develop.svn.wordpress.org/trunk@27333 602fd350-edb4-49c9-b593-d223f7449a82
Pass along preview query args only if they are already present. Avoids sloppily appending a preview nonce when there should not be one. See #17157.

git-svn-id: http://develop.svn.wordpress.org/trunk@27334 602fd350-edb4-49c9-b593-d223f7449a82
Inline documentation fixes for `timer_stop()`.

See #26874.


git-svn-id: http://develop.svn.wordpress.org/trunk@27335 602fd350-edb4-49c9-b593-d223f7449a82
Upgrader: Copy wp-includes/version.php over last, to avoid an installation failing with the new version.php in place. Fixes #25860


git-svn-id: http://develop.svn.wordpress.org/trunk@27336 602fd350-edb4-49c9-b593-d223f7449a82
Upgrader: Remove two stray spaces. See #25860


git-svn-id: http://develop.svn.wordpress.org/trunk@27337 602fd350-edb4-49c9-b593-d223f7449a82
Upgrader: Remove some debug from r27336. See #25860


git-svn-id: http://develop.svn.wordpress.org/trunk@27338 602fd350-edb4-49c9-b593-d223f7449a82
Upgrader: Remove more debug from r27336. See #25860


git-svn-id: http://develop.svn.wordpress.org/trunk@27339 602fd350-edb4-49c9-b593-d223f7449a82
Plupload: remove the (old) plupload.silverlight.xap, remove the "executable" prop from Moxie.xap, see #25663

git-svn-id: http://develop.svn.wordpress.org/trunk@27340 602fd350-edb4-49c9-b593-d223f7449a82
Inline documentation for hooks in wp-includes/rewrite.php.

Props mboynes for the initial patch.
Fixes #26095.


git-svn-id: http://develop.svn.wordpress.org/trunk@27341 602fd350-edb4-49c9-b593-d223f7449a82
Inline documentation for hooks in wp-admin/includes/class-wp-users-list-table.php.

Props leewillis77.
Fixes #26203.


git-svn-id: http://develop.svn.wordpress.org/trunk@27342 602fd350-edb4-49c9-b593-d223f7449a82
Add the ability to drag and drop files directly onto the editor.

The file will then begin to upload and the media manager will open.

props kovshenin.
see #19845.


git-svn-id: http://develop.svn.wordpress.org/trunk@27343 602fd350-edb4-49c9-b593-d223f7449a82
Strip backslashes, not just forward slashes, from untrailingslashit().

trailingslashit() will now remove any forward or backslashes from the end of a string before appending a forward slash.

props knutsp, willmot.
fixes #22267.


git-svn-id: http://develop.svn.wordpress.org/trunk@27344 602fd350-edb4-49c9-b593-d223f7449a82
TinyMCE: remove box-shadow from the "more" and "nextpage" placeholder images, props avryl, see #24067

git-svn-id: http://develop.svn.wordpress.org/trunk@27345 602fd350-edb4-49c9-b593-d223f7449a82
Fix a typo in the `author_rewrite_rules` hook doc.

Props kpdesign.
See #26095.


git-svn-id: http://develop.svn.wordpress.org/trunk@27346 602fd350-edb4-49c9-b593-d223f7449a82
Fix the return description for `switch_to_blog()` to reflect that it always returns true.

Props jeremyfelt.
Fixes #25328.


git-svn-id: http://develop.svn.wordpress.org/trunk@27347 602fd350-edb4-49c9-b593-d223f7449a82
Display site deletion confirmation as a regular admin page.

props jeremyfelt.
fixes #27223.

git-svn-id: http://develop.svn.wordpress.org/trunk@27348 602fd350-edb4-49c9-b593-d223f7449a82
Skip import tests if WordPress Importer plugin is missing.

props mattheu.
fixes #27250.

git-svn-id: http://develop.svn.wordpress.org/trunk@27349 602fd350-edb4-49c9-b593-d223f7449a82
Default value for $credentials parameter in wp_signon() should be an array, not a string.

props tivnet.
fixes #27130.

git-svn-id: http://develop.svn.wordpress.org/trunk@27350 602fd350-edb4-49c9-b593-d223f7449a82
Remove redundant add_filter() call. see [24848]. fixes #27255.

git-svn-id: http://develop.svn.wordpress.org/trunk@27351 602fd350-edb4-49c9-b593-d223f7449a82
Remove extra comma. props jorbin. see #19845.

git-svn-id: http://develop.svn.wordpress.org/trunk@27352 602fd350-edb4-49c9-b593-d223f7449a82