Allow selecting custom header and background images from the media library. Props aaroncampbell, sabreuse, greuben. fixes #19840

git-svn-id: http://core.svn.wordpress.org/trunk@20358 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add media-gallery js. see #19840

git-svn-id: http://core.svn.wordpress.org/trunk@20359 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Empty media-gallery.js - bumpbot hungry. see [20359].



git-svn-id: http://core.svn.wordpress.org/trunk@20360 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Compress scripts/styles: 3.4-alpha-20361.

git-svn-id: http://core.svn.wordpress.org/trunk@20361 1a063a9b-81f0-0310-95a4-ce76da25c4cd
More specific selectors for the 2x images, see #20293

git-svn-id: http://core.svn.wordpress.org/trunk@20362 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Always return a WP_Theme object from wp_get_theme(). Check \$theme->exists() or \$theme->errors() to confirm the requested theme actually exists. see #20361.



git-svn-id: http://core.svn.wordpress.org/trunk@20363 1a063a9b-81f0-0310-95a4-ce76da25c4cd
More specific selectors for the 2x images take 2, don't specify background-size for the 1x background, see #20293

git-svn-id: http://core.svn.wordpress.org/trunk@20364 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Compress scripts/styles: 3.4-alpha-20365.

git-svn-id: http://core.svn.wordpress.org/trunk@20365 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Beta 1 bump

git-svn-id: http://core.svn.wordpress.org/trunk@20366 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Dashboard icon back in, see #20293

git-svn-id: http://core.svn.wordpress.org/trunk@20367 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Compress scripts/styles: 3.4-beta1-20368.

git-svn-id: http://core.svn.wordpress.org/trunk@20368 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Remove duplicate JavaScript. Props aaroncampbell. See #19840, fixes #20363.


git-svn-id: http://core.svn.wordpress.org/trunk@20369 1a063a9b-81f0-0310-95a4-ce76da25c4cd
WP_HTTP: Curl: Correct a typo in [20208] causing failed curl requests not to return a WP_Error under certain situations. Props SergeyBiryukov. Fixes #20219

git-svn-id: http://core.svn.wordpress.org/trunk@20370 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Compress scripts/styles: 3.4-beta1-20370.

git-svn-id: http://core.svn.wordpress.org/trunk@20371 1a063a9b-81f0-0310-95a4-ce76da25c4cd
HTTP: Don't force cookie values to be urlencoded because it breaks usage of cookies in some scenarios like the LiveJournal Importer. Instead add a filter for a plugin to use if it really wants to have the cookie mangled. Fixes #19922 props pw201, dllh and kurtpayne. 


git-svn-id: http://core.svn.wordpress.org/trunk@20372 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Fix typo in [20372] - See #19922 props SergeyBiryukov.


git-svn-id: http://core.svn.wordpress.org/trunk@20373 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Child theme files need to override parent theme files. The array_merge() arguments are swapped. see #20103.

git-svn-id: http://core.svn.wordpress.org/trunk@20374 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Internally cache themes inside wp_get_themes() by theme_root as well as stylesheet, to avoid conflicts with future calls to wp_get_themes(). Always return only the last stylesheet found, as before. see #20103.

git-svn-id: http://core.svn.wordpress.org/trunk@20375 1a063a9b-81f0-0310-95a4-ce76da25c4cd