always triggering knownbug b50, refs #21

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@15871 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
fixing memory weight test, refs #21

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@15872 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
removing useless tests, refs #21

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@15873 29f149b2-0c63-11e1-8f5c-a347f6a9acd0