Attempt wasn't faster, so putting back the simple routing method
Attempt wasn't faster, so putting back the simple routing method

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