- Shift ProfileField API so that new returns undef on invalid fields.
This makes it possible for Shortcut::www_saveUserPrefs to execute.
The class methods in ProfileField are now also actually class methods.
+ Also fix up other modules that created dummy ProfileFields so that
they don't need to do that anymore, because it's now invalid.
- Merge contradictory-looking code from Shortcut's view and www_view
into a reasonable compromise in view, and then have www_view call
$self->view in a manner similar to that of the default Asset::view.
+ The profile field overrides still don't work, because there's no
obvious mechanism for "transclude asset in context". This may
require some fiddling to get right...
565119fa1a