Reparameterize functions in dev branch

[raymondben]

Some functions in dev have changed their input parameters, which will break existing code, so I'd like to allow those functions to accept EITHER the old parameters or the new (parent, children) ones. If the old parameters are provided, the new ones are ignored and vice-versa. See v_get_volley_match and v_get_volley_tournament for examples.

Functions needing to be adjusted:

• v_get_volley_match
• v_get_volley_tournament
• v_get_volley_match_list
• v_get_volley_player
• v_get_volley_player_list
• v_get_volley_tournament_list
• v_get_volley_tournament_ranking