Revert "opps, adding lost change (re: boost>=1.67)"
Revert "opps, adding lost change (re: boost>=1.67)"

This reverts commit 22f913d8929d367f443bfeed6c3228675e93a4a5.

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