Media: when copying from "caption" (textarea) to "alt" (text input) also remove line breaks, props kovshenin, fixes #23176 for trunk

git-svn-id: http://core.svn.wordpress.org/trunk@23298 1a063a9b-81f0-0310-95a4-ce76da25c4cd
In get_pages(), cache queries to individual cache buckets instead of storing them in one cached array. Also, store post IDs instead of full objects. This reduces overall memory usage as well as the size of the cache buckets. Use incrementor style passive cache invalidation.

Props nprasath002
see #23167


git-svn-id: http://core.svn.wordpress.org/trunk@23300 1a063a9b-81f0-0310-95a4-ce76da25c4cd
jQuery 1.9 final. jQuery Migrate 1.0. Uncompressed for now, while we iron out kinks.

props jorbin. see #22975.



git-svn-id: http://core.svn.wordpress.org/trunk@23301 1a063a9b-81f0-0310-95a4-ce76da25c4cd