Given a dictionary of photo sets, will look at lat/lon between
    sets, if they match, randomly move them around so the google map
    markeres do not overlap

def redistribute_duplicates(data):
    """Given a dictionary of photo sets, will look at lat/lon between
    sets, if they match, randomly move them around so the google map
    markeres do not overlap
    """
    
    coordinate_list=[]
    # Build a list of coordinates
    for myset in data['sets']:
        coordinate_list.append((myset['latitude'],myset['longitude']))

    for myset in data['sets']:
        lat=myset['latitude']
        lon=myset['longitude']
        item=(lat,lon)
        if coordinate_list.count(item) > 1:
            print("moving %s"%(myset['set_title']))
            random_number=random.random()
            myset['latitude']=str(random_number*POS_MOVE_DEG\
                    +float(myset['latitude']))
            myset['longitude']=str(random_number*POS_MOVE_DEG\
                    +float(myset['longitude']))