Remove `sudo : false` per https://docs.travis-ci.com/user/reference/trusty#container-based-infrastructure
Remove `sudo : false` per https://docs.travis-ci.com/user/reference/trusty#container-based-infrastructure

mapnik/mapnik,tomhughes/mapnik,tomhughes/mapnik,mapnik/mapnik,mapnik/mapnik,lightmare/mapnik,mapnik/mapnik,lightmare/mapnik,tomhughes/mapnik,lightmare/mapnik,lightmare/mapnik,tomhughes/mapnik