Fork {{action}} into old and new router flavors
Update {{action}} docs and add some asserts
Eagerly generate toString() of all classes at boot
Add concatenatedProperties documentation
Merge pull request #1653 from lukemelia/concatenated-properties-doc-edit

Add concatenatedProperties documentation

Fixes #1627, Fixes #1652. Thanks, @javierav
Remove redundant calls to ComputedProperty#property()
Fix default `into` for nested routes

By default, routes now render into their nearest
parent that rendered a template.

As a side-effect, application is now even less
special. It just happens to be a top-level route,
like `loading`.
Support camelized or underscored template names
Merge pull request #1654 from elucid/redundant-property-calls

Remove redundant calls to ComputedProperty#property()