matplotlib Code

Increased coverage of backend_driver.py to include almost everything
in axes.py. Lots of little bug fixes.

Merged revisions 3984-4000 via svnmerge from
http://matplotlib.svn.sf.net/svnroot/matplotlib/trunk/matplotlib

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r3991 | efiring | 2007-10-23 17:25:24 -0400 (Tue, 23 Oct 2007) | 2 lines

Bugfix: save colorbar axis label so it won't get lost
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r3999 | efiring | 2007-10-24 18:14:57 -0400 (Wed, 24 Oct 2007) | 2 lines

Added ax kwarg to pyplot.colorbar and Figure.colorbar
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table_demo working. Lots of minor fixes. Faster transforms when
debugging is turned off.

More examples working.

Renamed [xmin, ymin, xmax, ymax] in Bbox to [x0, y0, x1, y1] and
provide functions that really do give xmax etc. as well.
Renamed lbrt to extents and lbwh to bounds (for consistency).
Removed some dead code.

Initial pass of Gtk, Qt, Qt4, Fltk and Wx GUI backends. Lots more
examples passing.

Fix masked array plotting again.

Separated path utilities from backend_agg

Fix bug in clipping rectangle in PDF

Fix bugs in log_demo.py