HTML5: Fix "overloaded" case when soundManager.play('id','some.mp3'); is called twice, second call would fail.
Tweak getSoundById() to not throw error if ID omitted. Improve language on "not found" messaging.
Warn on 32-sound ceiling Flash limit.
Note on HTML5 preload attribute values (+MSDN link)
Correct sound ID
Debug tweaks, more HTML5 safety checks (buffered can't go beyond 100%). Exit without error if soundManager.getSoundById() called, as non-fatal. Correction for overloaded play(url, id) case.
Remove complain() debug calls, too.