boost_adapters - apply temp fix via @Algunenano for boost 1.64 (ref #3733)
boost_adapters - apply temp fix via @Algunenano for boost 1.64 (ref #3733)

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