Colors: enable use of CSS3 colors
Colors: update MapCSS Docu
Eval: bugfix, include additional functions in call()-function
Mapnik: use only pseudo element 'default' for canvas properties
test.mapcss: rewrite; simple but nice test style
Eval: base: bugfix, to_float(), to_int(); catch TypeError
Compiler::function_match(): change rendering order; [style_element]-layer, [style_element]-z-index
Mapnik: render labels and shields after all other symbolizers
Mapnik: document and improve last commit; change rendering order