- update release schedule
- update release schedule

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