More/better docs for nose.
More/better docs for nose.

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