matplotlib Code

Change nxutils.points_inside_poly to return an array of bool, not int.

Oops in last commit.

Simplify and remove redundant code.

path simplification for paths with gaps

Throw exception when there are too many data points.

Fix some python2.6 -3 warnings. (mainly usage of has_key)

Add "filled" kwarg to path_intersects_path

Allocate acols, arows only if needed; change suggested by Mike D.
Other slight cleanups in _image.cpp.

Bilinear interp in NonUniformImage; slightly modified patch by Gregory Lielens
Includes a bugfix in _image.pcolor2.
Replaced pylab_examples/pcolor_nonuniform.py with the more
aptly-named image_nonuniform.py, modified it to show both
interpolation types, and added it to backend_driver.py.

Fix bug introduced in 6033, reported by Jae-Joon Lee