Undocumented predicates

The following predicates are exported, but not or incorrectly documented.

 list(Arg1, Arg2)

 list(Arg1, Arg2, Arg3)

 register(Arg1, Arg2, Arg3)

 register(Arg1, Arg2, Arg3, Arg4)

 send_messages(Arg1, Arg2, Arg3)

 send_messages(Arg1, Arg2, Arg3, Arg4)

 connector_data_set(Arg1, Arg2, Arg3)

 connector_data_set(Arg1, Arg2, Arg3, Arg4)

 activate(Arg1, Arg2, Arg3)

 activate(Arg1, Arg2, Arg3, Arg4)

 status(Arg1, Arg2, Arg3)

 status(Arg1, Arg2, Arg3, Arg4)

 send_status_delivery(Arg1, Arg2, Arg3)

 send_status_delivery(Arg1, Arg2, Arg3, Arg4)