- The code to install regex controller was not always executed. Forced the
exection of that by adding it to community/__init__.py
- Renoved the that code from hooks.py
The URL of a sketch will be `/skectes/<sketch-name>`. That would still be like
`/skectes/SKETCH-123`. It would interesting to try to make it `/sketches/123`.
The URL of a course will be `/courses/<course-name>` and a topic will be
`/courses/<course-name>/<topic-name>`.
Implemented this by adding entries to `website_route_rules`.