make sure to convert x,y and z to int before passing to spherical_mercator
make sure to convert x,y and z to int before passing to spherical_mercator

gravitystorm/node-mapnik,mapnik/node-mapnik,mapnik/node-mapnik,CartoDB/node-mapnik,tomhughes/node-mapnik,Uli1/node-mapnik,langateam/node-mapnik,CartoDB/node-mapnik,gravitystorm/node-mapnik,langateam/node-mapnik,mapnik/node-mapnik,stefanklug/node-mapnik,mapnik/node-mapnik,gravitystorm/node-mapnik,stefanklug/node-mapnik,CartoDB/node-mapnik,tomhughes/node-mapnik,Uli1/node-mapnik,langateam/node-mapnik,MaxSem/node-mapnik,mojodna/node-mapnik,mojodna/node-mapnik,MaxSem/node-mapnik,MaxSem/node-mapnik,gravitystorm/node-mapnik,tomhughes/node-mapnik,langateam/node-mapnik,CartoDB/node-mapnik,Uli1/node-mapnik,Uli1/node-mapnik,CartoDB/node-mapnik,tomhughes/node-mapnik,stefanklug/node-mapnik,tomhughes/node-mapnik,stefanklug/node-mapnik,langateam/node-mapnik,MaxSem/node-mapnik,mojodna/node-mapnik,mapnik/node-mapnik,mojodna/node-mapnik