fixed EXT-6458 Recent speakers not sorting properly with Group Voice
fixed EXT-6458 Recent speakers not sorting properly with Group Voice

switched nearby people panel to use active speaker manager instead of local/nearby speaker manager only

reviewed by Mike at https://codereview.productengine.com/secondlife/r/88/

gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm