fixup includes for shape input

plugins/input/shape/shape_featureset.hpp

@@ -24,6 +24,7 @@
 #define SHAPE_FEATURESET_HPP
 
 //mapnik
+#include <mapnik/datasource.hpp>
 #include <mapnik/geom_util.hpp>
 #include <mapnik/feature.hpp>
 #include <mapnik/unicode.hpp>

plugins/input/shape/shape_index_featureset.cpp

@@ -34,6 +34,7 @@
 
 #include "shape_index_featureset.hpp"
 #include "shape_utils.hpp"
+#include "shp_index.hpp"
 
 using mapnik::feature_factory;
 using mapnik::geometry_type;