Delay effect start notifications slightly.
Delay effect start notifications slightly.

Allow the functions which create effects to get their IDs as return
values before the start notifications are posted, so they can reconize
them as being their "own" effects. afterglow-max uses this.

dandaka/afterglow,brunchboy/afterglow,brunchboy/afterglow,brunchboy/afterglow,dandaka/afterglow