changing result type for VAR_WAITING_TIME from int to double. some refactoring refs #12

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@14780 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
fixing svn properties

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@14781 29f149b2-0c63-11e1-8f5c-a347f6a9acd0
now handling non-standard OSM values on key 'tracks'

git-svn-id: http://svn.code.sf.net/p/sumo/code/trunk/sumo@14782 29f149b2-0c63-11e1-8f5c-a347f6a9acd0