Highscore list in SUMO game extended

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@15960 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
Removing old traceExporter.jar tests.
hmm - wasn't that removed once already?

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@15961 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
adding some public domain sounds for the game

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@15962 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
Merge branch 'master' into planet
Merge branch 'planet' of https://github.com/planetsumo/sumo into planet