move all of basemap.py in here so sphinx will find docstrings. Spruce up docstrings, adding rest formatting.
move all of basemap.py in here so sphinx will find docstrings.
Spruce up docstrings, adding rest formatting.

svn path=/trunk/toolkits/basemap/; revision=5482

matplotlib/basemap,matplotlib/basemap,guziy/basemap,guziy/basemap