[matplotlib-devel] small backend change

[John H. <jdh...@ac...>]

I just made a minor change in the backend API.  The faceColor argument
(formerly a color arg) for draw_rectangle, draw_arc, etc... is now a
graphics context instance.  I updated all the backends in CVS.  

Unfortunately Jeremy, there now appears to be a bug in wx.  I can't
tell if it was something I did or something that was there already,
because with wx swallowing the exceptions, I can't find it!  I also
added a few more debug print messages to functions that don't have
them already, but still couldn't track it down.  Sorry for the
trouble.

Note to any wx savvy readers!  Jeremy and I have been struggling over
the tendency of wx to eat exceptions in a way that we can't recover.
If anyone knows how to disable this in wxpython, please contact us.

JDH