Clean up.
Update Atom identifiers: Were pois/002:poixxx, replace with pois/003:poixxx
Update DataBean YAML data
Add layout tests on: comments
Debugging: Add more info.
Documentation: Add TODOs
Refactor: AbstractControllers now return a View object specifying Content-Type and character encoding, not just a String (=jspFilename)
Work in progress: Display comments about a POI, pre-post a new comment about a POI
Allow host=192.168.0.40 in NoShibbolethFilter