matplotlib Code

Update plotting() doc string to refer to getp/setp.

Removed a reference to nx, replaced with numpy.

Updating changelog

Fix doubly-included fonts in Postscript files.

Hopefully fixing the Glyph memory leak properly now.

Oops in last commit.

Backing out Glyph object leak fix, since it causes segfaults with PDF
backend. Will look into it further.

Change "delete" to "delete []" for arrays on the heap. (It's
technically more correct, but also pleases valgrind.)

Fix reference leak on Glyph objects.

forgot to change unicode string to raw string