test copy of copy of placemark
don't copy GeoDataObject part of features

BUG: 339443
cleanup includes
don't attempt to copy from super class
use protected visibility rather than friend declarations
make implicitly shared
simplify
[API change] remove non-const version of RouteRequest::operator[]
port RouteRequest to use GeoDataContainer internally
persistent routing document
debug++
fix crash
add icons
render pixmap via style
route