Added new run method to linear diffuser for a closer match to other methods in other modules
Added new run method to linear diffuser for a closer match to other methods in other modules

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