stabilizing order of parallel incoming check for test output, refs #12, #21

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@16739 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
adapting test for parallel incoming check, refs #21

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@16740 29f149b2-0c63-11e1-8f5c-a347f6a9acd0