updating default motorway lane count according to http://wiki.openstreetmap.org/wiki/Lane#Assumptions

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@17085 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
updated typemaps

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@17086 29f149b2-0c63-11e1-8f5c-a347f6a9acd0