checking for old website references when doing xml schema lookups, refs #2

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@15781 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
fixing error message type for vehicle color via traci

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@15782 29f149b2-0c63-11e1-8f5c-a347f6a9acd0