fixing junction ignore mode, refs #1117

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@15705 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
test for junction ignore mode, refs #1117, #21

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@15706 29f149b2-0c63-11e1-8f5c-a347f6a9acd0