improvements to spatially constrained random region algorithm
improvements to spatially constrained random region algorithm

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