fixing bluetooth reentry, removing duplicate code, refs #1455, #12

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@17148 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
adding bluetooth visualization, refs #36, #1455

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@17149 29f149b2-0c63-11e1-8f5c-a347f6a9acd0