Add Ajax-y interface for creating lists

The dashboard can now create lists! Woo.
Add Ajax button for deleting lists

Because Ajax is great, both for web applications and cleaning restrooms.
Move ArticleList stuff to a separate class

Makes the DASH object a little less cluttered. Not much less cluttered,
but a little bit.

No change in function.
Ajaxify the list editor

Both adding and removing pages are now done with Ajax.
Merge pull request #1 from MarkTraceur/master

Add Ajax-y interfaces for lists