Changed to use nose instead of unittest.
Changed to use nose instead of unittest.

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