now scaling road markings and railroads according to street-width-exaggeration refs #36

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@15753 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
code style patch

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@15754 29f149b2-0c63-11e1-8f5c-a347f6a9acd0