Little tidies
Support an array of dom nodes to bind
Repeating dom sections

Doesn't support multiple repeat-nodes yet, but the code should once we can specify it.
Bug: merge should preserve arrays as arrays
Move isArray up with the other utility functions
Apply cascades to parent scope

This is important for the repeating, as when the child is applied, the parent needs to be applied to update its display as well - see the todo.html example.
todo.html example, based on AngularJS example