fix error output if svg geometry conversion fails
make apply_to_layer public
+ avoid unnecessary const_cast<>
fix unsigned/signed comparison gcc warnings
Merge branch 'master' of github.com:mapnik/mapnik
+ add polgon close converter
- improved type conversions in oracle plugin (especially date/time columns now can be filtered in styles)
- automate linux project file generation (and simplify sub projects)
- updated SConstruct