Minor refactoring of max-p code: conforms to new ID indexing code for weights matrices, new way to handle enclaves, catch no solution cases; doc test updated to reflect changes.
Minor refactoring of max-p code: conforms to new ID indexing code for weights matrices, new way to handle enclaves, catch no solution cases; doc test updated to reflect changes.

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