#3 Controller view resolution

[Jesse Peterson]

Allows for nesting of controller views, ie:

$ctlr->addView ('viewname1', 'viewname2');
$ctlr->addView ('viewname2', new View (...));

Which will resolve 'viewname1' to the actual View
object (or a Handle).

It also allows for default views to be named:

$ctlr->setDefaultView ('viewname1');

Will, as well, resolve to that same view object/handle.

Thoughts?