matplotlib Code

Remove the "markup" kwarg and rcParam everywhere and replace it with
an automatic detection of math markup.

Add kwarg 'markup' for all text that allows the user to choose either
'plain' or 'tex' markup. A default may also be provided in the
rcParam 'text.markup'.
Minor bugfix to mathtext.py

Fix grayscale specification in demo

migrated matlab to pylab and more

SC 02/10/2004

fixed stoopid mathtext bug

mathtext 2.2 warning

sync to 0.62.0

added integral demo