relying more on the adapter.page object to store appConfig and routes

For the sake of performance, and in preparation for adopting a more express-like approach, which is a less defensive approach btw, we now:

 * compute appConfig and routes once per request (by default) instead of computing them per mojit instance from within the addons.
 * deprecate ac.staticAppConfig in favor of adapter.page.staticAppConfig to easy the GC process by having less big objects hanging around.

## TODO:

 * [x] code changes
 * [ ] tests
 * [ ] docs