redo this page, since it has little to do with 'naming
convention ' as is.
What I think we need is
- (for sure) a "registry", list of class names (rather then element #id's) that
are introduced by kauri (specially the widgets) and capture some 'meaning' or
'purpose'
- (unsure) a technique (naming convention? namespacing technique) to forge new
such names in the future
