add lib/mpl_toolkits/__init__.py

Author: jswhit

MANIFEST.in

@@ -91,6 +91,7 @@ include examples/utmtest.py
 include examples/test_rotpole.py
 include examples/wm201_Arctic_JJA_1990-2008_moyenneDesMoyennes.nc
 include examples/README
+include lib/mpl_toolkits/__init__.py
 include lib/mpl_toolkits/basemap/__init__.py
 include lib/mpl_toolkits/basemap/proj.py
 include lib/mpl_toolkits/basemap/pyproj.py