Build the path module (inadvertently removed during a merge).
Update to use new numpy macros.
Fix alignment of clipping rectangles.
Fix bug in PDF backend.
further refinement of GEOS library version checking
more tweaking of error messages.
clearer error message if wrong version of GEOS found.
Use mpl standard import idiom in image.py
regenerated with Cython 0.9.6.8
install full res coastlines if they are available
