9bbb5e8f58
made viz panel return a preferred size that makes sense (it preferrs to be one page size as rendered to the screen: which is 72 dpi, but I should look into whether or not I can avoid hard coding that). git-svn-id: https://samskivert.googlecode.com/svn/trunk@260 6335cc39-0255-0410-8fd6-9bcaacd3b74c