Remove Prototype and script.aculo.us from core.

Continue to register them, pulling from ajax.googleapis.com. This is only being done for backwards compatibility;
libraries in use will continue to be local sources.

In the process, update to the latest versions of Prototype (1.7.1, June 5) and script.aculo.us (1.9.0, from 2010).

props helenyhou.
fixes #21661, #16664, #16665.



git-svn-id: http://core.svn.wordpress.org/trunk@21593 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/update-core.php

@@ -437,6 +437,8 @@
 'wp-admin/images/widgets-arrow.gif',
 'wp-admin/images/wpspin_dark.gif',
 'wp-includes/images/upload.png',
+'wp-includes/js/prototype.js',
+'wp-includes/js/scriptaculous',
 // Don't delete, yet: 'wp-admin/images/media-button-music.gif',
 // Don't delete, yet: 'wp-admin/images/media-button-other.gif',
 );