matplotlib Code

fixed a line collection rounding bug in agg that caused strange bugs when path lengths were 0

Use 'dashed' | 'solid' to specify contour negative linestyle

add unicode latex support

added the ability to insert arbitrary statements into
the latex preamble to customize usetex output.

some more units refactoring

commented out polargrid option in matplotlibrc.template

Add convenience function, rcParams entry, for tick label format control

forgot one line in matplotlib.template

commented out default values in matplotlib.template

completely removed rcfile configurability of marker colors