Fix:core:Use oneway flags to detect complex T junctions|
Removes workaround for a now-fixed bug regarding way flags

Signed-off-by: mvglasow <michael -at- vonglasow.com>
Merge branch 'highfive' of github.com:mvglasow/navit into highfive
Refactoring:core:Set maneuver type in command_new(), constants for turns

Signed-off-by: mvglasow <michael -at- vonglasow.com>
Fix:core:Prevent misinterpreting roundabouts as regular turns

Signed-off-by: mvglasow <michael -at- vonglasow.com>
Fix:core:Don't crash on broken roundabouts

Signed-off-by: mvglasow <michael -at- vonglasow.com>
Merge branch 'highfive' of github.com:mvglasow/navit into highfive