Fixes or addresses several issues. Sorry about that.
Fixes #106: Page and form titles needed in bid.tmpl. We now have page_title, view_title, and form_title
Fixes #102: changes to vendor bid form.
Fixes #99: Changes to "Propose an Act" form.
Fixes #92: Duration display is off. This was a bugger, but it's working now and I think the new Duration object will serve us well.

I've also implemented #100, so I hope we like that idea... :)