fixing rerouting close to junctions, refs #1241

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@16644 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
adding test for rerouting close to junctions, refs #1241

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@16645 29f149b2-0c63-11e1-8f5c-a347f6a9acd0