* Involved a big rewrite of arg_loader to accomodate nil and false better. Sadly this meant dumping ||= for if-statements. Blech, but works.
* Updates to regression tests are pretty trivial.
* Removed graphics_text_spec because, even though it looks useful, with rake sanity it really isn't.
* Exposed font on deck as well
Cleaned up graphics/text.rb too!
Needed to set squibcolor prior to translating the coordinate system so that gradients are relative to the card (as is documented). This also means stroking is done AFTER drawing the text, which looks better anyway.
Fill color is still the same with 'color' (i.e. can be overridden by markup still), but now there's a stroke_width and a stroke_color option that, when stroke_width > 0, will draw an outline below the text. Since this isn't a Pango feature, we can't do markup for outlines. (Maybe make that a feature request to Pango if you want it.)
Implements #51
Andy Meneely