Dialog centering, sizing, etc. seem to be fixed!  Well, *if* they come from a link/menu.
If they come from a context menu, they're still really broken.
Fix Cancel link positioning, fix watermark error reply (seems to have already been broken in v3.0.4...)
Merge pull request #141 from shadlaws/jquery_19_dialog_sizing

Dialog centering, sizing, etc. seem to be fixed!