New Post Format UI chooser treatment in response to testing.

* Bigger icons
* Format description under each
* UI hides after choice
* Saving without choosing implies "Standard"
* Helpful text, with "Change format" link

see #24046. props lessbloat, wonderboymusic.

git-svn-id: http://core.svn.wordpress.org/trunk@24006 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Thirteen: further performance for functions.js scroll event callback, props obenland. See #23875.

git-svn-id: http://core.svn.wordpress.org/trunk@24005 1a063a9b-81f0-0310-95a4-ce76da25c4cd
New Post Format UI chooser treatment in response to testing.

* Bigger icons
* Format description under each
* UI hides after choice
* Saving without choosing implies "Standard"
* Helpful text, with "Change format" link

see #24046. props lessbloat, wonderboymusic.

git-svn-id: http://core.svn.wordpress.org/trunk@24006 1a063a9b-81f0-0310-95a4-ce76da25c4cd
A little cleanup of post-formats.js

git-svn-id: http://core.svn.wordpress.org/trunk@24007 1a063a9b-81f0-0310-95a4-ce76da25c4cd
merged with master
Compress scripts/styles: 3.6-beta1-24008.

git-svn-id: http://core.svn.wordpress.org/trunk@24008 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Revert attachment.url back to props.url. Fixes error that prevents inserting media into the editor.

see #24046


git-svn-id: http://core.svn.wordpress.org/trunk@24009 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Compress scripts/styles: 3.6-beta1-24010.

git-svn-id: http://core.svn.wordpress.org/trunk@24010 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Make sure the variables are always defined. props tlovett1, danielbachhuber. fixes #24034. fixes #24112.

git-svn-id: http://core.svn.wordpress.org/trunk@24011 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Thirteen: center footer text in RTL, props yoavf. Fixes #24110.

git-svn-id: http://core.svn.wordpress.org/trunk@24012 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Twelve: remove zero-width spaces in CSS value, props SergeyBiryukov. Closes #23790.

git-svn-id: http://core.svn.wordpress.org/trunk@24013 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Twelve: add back missing space in CSS value, removed in r24013. See #23790.

git-svn-id: http://core.svn.wordpress.org/trunk@24014 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Use get_post_format() instead of assuming we already have it.

* Fixes an issue where image posts without a title could not be deleted

fixes #23887. see #24046. props WraithKenny, SergeyBiryukov.

git-svn-id: http://core.svn.wordpress.org/trunk@24015 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Twelve: fix style element ID attribute value, props SergeyBiryukov. Closes #24033.

git-svn-id: http://core.svn.wordpress.org/trunk@24016 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Use attachment.url only if it is available, else fall back to props.url.

see #24046. see [24009].

git-svn-id: http://core.svn.wordpress.org/trunk@24017 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Compress scripts/styles: 3.6-beta1-24018.

git-svn-id: http://core.svn.wordpress.org/trunk@24018 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Revisions: Clean up JavaScript variable names, see #23901.

git-svn-id: http://core.svn.wordpress.org/trunk@24019 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Merge remote-tracking branch 'upstream/master'
Revisions UI: Disable previous and next buttons when you're on the first, and last node. Put revision ticks above the slider range. props lessbloat for initial patch. see #23899.

git-svn-id: http://core.svn.wordpress.org/trunk@24020 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Standardize post format postmeta keys around the ones already used by the Crowd Favorite plugin.

props wonderboymusic. fixes #24010.

git-svn-id: http://core.svn.wordpress.org/trunk@24021 1a063a9b-81f0-0310-95a4-ce76da25c4cd