matplotlib Code

added two new projections ('mbtfpq' and 'gall')

removed numerical_methods from imports

fix typo

Add dpi kwarg and docstring to Text.get_window_extent()

Fix mri_with_eeg.py; it was not rescaling or printing correctly.

remove debug statements

another fix for warpimage and 'cyl'

fix cyl example.

fixed cbook.flatten so its docstring example works
Previously, flatten(('a','b')) triggered infinite recursion.

Enhancement to Axes.spy, and bugfixes:
figlegend was not plotting markers;
plot could not handle empty input arrays.