make temp stylesheet use unique path (todo: make all tests reentrant)
make temp stylesheet use unique path (todo: make all tests reentrant)

CartoDB/node-mapnik,mapnik/node-mapnik,langateam/node-mapnik,CartoDB/node-mapnik,tomhughes/node-mapnik,langateam/node-mapnik,mapnik/node-mapnik,CartoDB/node-mapnik,tomhughes/node-mapnik,langateam/node-mapnik,CartoDB/node-mapnik,langateam/node-mapnik,mapnik/node-mapnik,CartoDB/node-mapnik,langateam/node-mapnik,tomhughes/node-mapnik,tomhughes/node-mapnik,mapnik/node-mapnik,tomhughes/node-mapnik,mapnik/node-mapnik