matplotlib Code

Added easy access to minor tick properties (Pierre G-M)

fix unit changes for errorbar_limits code

commit patch 1599876, fixes to qt4agg backend and qt4 blitting demo.
Thanks to Phil Thompson.

added Manuel's contour linestyle patch

improved ghostscript version checking

remove STIXFonts zip file

rm configtest.py from repository

dont enable usetex in arrow_demo.py

install fonts/otf to mpl-data

Made contour auto level generation work with log color scale