refactor of StationFinder. Removed unecessary for loop, redefinition of variables, and set initial closest station to one of the stations, rather than DBL_MAX
refactor of StationFinder. Removed unecessary for loop, redefinition of variables, and set initial closest station to one of the stations, rather than DBL_MAX

hushifei/bike-path,red-spotted-newts-2014/bike-path,red-spotted-newts-2014/bike-path