Used to configure the {@link ComponentClassResolver}, to allow it to map prefixes to library root packages (the application namespace is a special case of this). In each case, a prefix on the path is mapped to a package. Starting with Tapestry 5.2, the path prefix may not contain a slash character.
The root package name should have a number of sub-packages:
- pages
- contains named pages
- components
- contains components
- mixins
- contains component mixins
- base
- contains base classes