remove file only currently present in branch
make consistent the proj4 string used for spherical mercator across tests and docs
Merge branch 'master' of github.com:mapnik/mapnik into lazy-proj4
throw if attempting to transform between projections that require proj4 support if proj4 is not compiled in
fix more mercator proj4 strings
Merge branch 'master' of github.com:mapnik/mapnik into lazy-proj4