first pass at encoded image support
fix compile with Mapnik 2.3.x
Add test of image encoding
add to gitignore
fix hardcoding of plugin directory
only test against mapnik 2.3 and 3.x for now
Add missing test file
get the mapnik plugin installation working across versions/ppas
add raster as resampled image
webp->jpeg to enable tests to pass on travis
iwyu
support both mapnik 3.x and 2.3.x
disable testing on master - enable 2.2.x
be explicit about mapnik::raster per version
pass original tile extent to tile_featureset to correctly position rasters
configurable image encoding format and scaling
travis: don't test against mapnik 3.x for the moment
travis: less quiet install
travis: fix typo
travis: disable install of gcc 4.8