Use production version of jQuery Migrate when not SCRIPT_DEBUG, which silences issues.

Minify jQuery as well. These were both unminified for ease of debugging.

fixes #24821.



git-svn-id: https://core.svn.wordpress.org/trunk@24781 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add iWork formats to valid upload filetypes. key, numbers, pages. props barry, fixes #24621.



git-svn-id: https://core.svn.wordpress.org/trunk@24782 1a063a9b-81f0-0310-95a4-ce76da25c4cd