Looks up lat/lon info with goole given a list
    of positions as parsed by parsePositionFile.
    Returns google results in form of dicionary

def lookupGeoInfo(positions):
    """Looks up lat/lon info with goole given a list
    of positions as parsed by parsePositionFile.
    Returns google results in form of dicionary
    """
    list_data=[]
    oldlat=0
    oldlon=0
    d={}
    for pos in positions:
        # Only lookup point if it is above threshold
        diff_lat=abs(float(pos['lat'])-oldlat)
        diff_lon=abs(float(pos['lon'])-oldlon)
        if (diff_lat>POS_THRESHOLD_DEG) or\
           (diff_lon>POS_THRESHOLD_DEG):
            d=lookup_by_latlon(pos['lat'],pos['lon'])
            oldlat=float(pos['lat'])
            oldlon=float(pos['lon'])
        else:
            logger.debug("Skipping %s/%s, close to prev"%(pos['lat'],pos['lon']))

        # Use fresh lookup value or old value
        list_data.append(d)

    logger.info('looked up %d positions'%(len(list_data)))
    return list_data