Log message

Upgrade jQuery UI to version 1.7.

Following our upgrade to JQuery 1.3 we can now upgrade to
the most recent version.

	Modify	/app/jquery/jquery-ui.core.js	diff
	Modify	/app/jquery/jquery-ui.dialog.js	diff
	Modify	/app/jquery/jquery-ui.draggable.js	diff
	Modify	/app/jquery/jquery-ui.sortable.js	diff