Log Message:
Update from version 0.16nb1 to 0.18.

Upstream changes:

0.18    09 Oct 2008
        * fix bug where form was not cleared during initial search

0.17    11 Sept 2008
	* change tact altogether in form_to_object() and assume
	  there are no autoincrement fields in $form
	* move the form/object seeding in create() to the core
	  Controller create() method. This change
	  is as much to solve a strange Class::C3/Dispatcher issue
	  with multiple inheritance as anything.
        * add missing $c in call to $self->form
        * do_search calls field_names() on controller rather than form object