matplotlib Code

added glen's Fc specteal patch

added recarray utils module

Make safezip accept more args; quadmesh_demo cleanup

fix unit changes for errorbar_limits code

fixed an aspect=auto problem with bezier ellipse approx

changed cbooks reversed to agree with the python builtin

A further optimization of the new dedent.

A further optimization of the new dedent.

Oops in last commit.

Use regular expressions to do dedenting. This is ~15X faster than the
old implementation. dedent accounted for around 30% of the time spent
in "import pylab", so was probably worthy of optimization, even if this
regex approach is less clear. The results are identical to the old
implementation, with the exception of a single docstring (in
backend_bases.py) that needed to be fixed.