quotes view, purchaseorders views return 404

[Arie Skliarouk]

http://crm2.catchmedia.com/en/quotes/view/1/
http://crm2.catchmedia.com/en/purchaseorders/view/4/

[Thorsten Fröhlich]

This URLs doesn't exist yet. They should point to PDF. I'm currently working on some model improvements [refs #54], which will cause some heavy database changes. I'm also going to implement that feature with Ticket #54.