ran straight into the static initialization order fiasco, refs #12

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@16221 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
smaller max speed for busses, refs #21

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@16222 29f149b2-0c63-11e1-8f5c-a347f6a9acd0