Mods and cosmetic changes to sphinx and numpydoc upgrade instructions.
Mods and cosmetic changes to sphinx and numpydoc upgrade instructions.

AlanZatarain/pysal,tectronics/pysal,Alwnikrotikz/pysal,Alwnikrotikz/pysal,Alwnikrotikz/pysal,tectronics/pysal,AlanZatarain/pysal,AlanZatarain/pysal,tectronics/pysal