added test for #676

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@15435 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
fixing expected output for internal lane rerouting, refs #1128

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@15436 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
fixing rerouting bugs, refs #676, #1128

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@15437 29f149b2-0c63-11e1-8f5c-a347f6a9acd0