Make sure all of Kipple's abilities are handled by `t.dom` and `t.navigate`, then delete Kipple.

[codelamp]

Kipple was originally my library for traversing any type of object, it also had some dom node creation handling built in. Because theory's layout has now stabalised a bit, I'm going to merge Kipple's functionality across theory.dom and theory.navigate.

• theory.dom is mostly complete now, it just needs the dom node creation added.
• theory.navigate is pretty much complete too, needs testing.