Added deploy script for PyPI.
Added deploy script for PyPI.

ManuSchmi88/landlab,SiccarPoint/landlab,cmshobe/landlab,ManuSchmi88/landlab,amandersillinois/landlab,Carralex/landlab,ManuSchmi88/landlab,SiccarPoint/landlab,RondaStrauch/landlab,landlab/landlab,csherwood-usgs/landlab,landlab/landlab,landlab/landlab,cmshobe/landlab,laijingtao/landlab,csherwood-usgs/landlab,Carralex/landlab,laijingtao/landlab,amandersillinois/landlab,RondaStrauch/landlab,cmshobe/landlab,RondaStrauch/landlab,Carralex/landlab