fixing performance test config, refs #21

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@17344 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
coloring by loaded edge weight now correctly reflects changes over time refs #36

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@17345 29f149b2-0c63-11e1-8f5c-a347f6a9acd0