- updating filament for external filament incident with >1 region
- updating filament for external filament incident with >1 region

pastephens/pysal,lanselin/pysal,nathania/pysal,lixun910/pysal,sjsrey/pysal_core,sjsrey/pysal_core,jlaura/pysal,TaylorOshan/pysal,darribas/pysal,pysal/pysal,chhao91/pysal,jlaura/pysal,hasecbinusr/pysal,badjr/pysal,spreg-git/pysal,schmidtc/pysal,ljwolf/pysal,chhao91/pysal,darribas/pysal,pastephens/pysal,sjsrey/pysal,weikang9009/pysal,nathania/pysal,hasecbinusr/pysal,spreg-git/pysal,pastephens/pysal,lixun910/pysal,dfolch/pysal,pedrovma/pysal,schmidtc/pysal,ljwolf/pysal,lixun910/pysal,dfolch/pysal,ljwolf/pysal_core,ljwolf/pysal_core,ljwolf/pysal_core,badjr/pysal,sjsrey/pysal_core,hasecbinusr/pysal,TaylorOshan/pysal,TaylorOshan/pysal,jlaura/pysal,ljwolf/pysal