DOC: clarifying the role of silent_island_warning
DOC: clarifying the role of silent_island_warning

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