matplotlib Code

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

reinstated changes of markercolor handling, deactivated rcfile-configurability of markercolor to prevent problems

reworked linestyle and markercolor handling

SVG options: image_noscale and image_inline