add count in djikstra's algorithm to get around py 3.x change in sort behavior
add count in djikstra's algorithm to get around py 3.x change in sort behavior

lpsinger/astropy,mhvk/astropy,stargaser/astropy,pllim/astropy,MSeifert04/astropy,saimn/astropy,larrybradley/astropy,DougBurke/astropy,stargaser/astropy,joergdietrich/astropy,AustereCuriosity/astropy,AustereCuriosity/astropy,astropy/astropy,kelle/astropy,DougBurke/astropy,joergdietrich/astropy,lpsinger/astropy,AustereCuriosity/astropy,pllim/astropy,StuartLittlefair/astropy,larrybradley/astropy,dhomeier/astropy,mhvk/astropy,bsipocz/astropy,funbaker/astropy,AustereCuriosity/astropy,astropy/astropy,DougBurke/astropy,lpsinger/astropy,lpsinger/astropy,dhomeier/astropy,saimn/astropy,kelle/astropy,lpsinger/astropy,AustereCuriosity/astropy,StuartLittlefair/astropy,stargaser/astropy,pllim/astropy,saimn/astropy,astropy/astropy,dhomeier/astropy,funbaker/astropy,bsipocz/astropy,bsipocz/astropy,aleksandr-bakanov/astropy,joergdietrich/astropy,mhvk/astropy,dhomeier/astropy,joergdietrich/astropy,astropy/astropy,astropy/astropy,StuartLittlefair/astropy,bsipocz/astropy,saimn/astropy,joergdietrich/astropy,kelle/astropy,larrybradley/astropy,tbabej/astropy,mhvk/astropy,tbabej/astropy,aleksandr-bakanov/astropy,MSeifert04/astropy,tbabej/astropy,dhomeier/astropy,stargaser/astropy,larrybradley/astropy,StuartLittlefair/astropy,MSeifert04/astropy,kelle/astropy,StuartLittlefair/astropy,mhvk/astropy,tbabej/astropy,pllim/astropy,funbaker/astropy,larrybradley/astropy,DougBurke/astropy,tbabej/astropy,aleksandr-bakanov/astropy,funbaker/astropy,saimn/astropy,kelle/astropy,aleksandr-bakanov/astropy,pllim/astropy,MSeifert04/astropy