Added the ability to have the voice enabled in multiple viewer instances
Cleanup, further hardening of namecache callbacks, and update to avatar picker.
Avoid occasional DoF-related crash upon region disconnection.
Minimal change to fix folder->Add Items, purgeCategory wasn't supposed to be called in this case.
Merge remote-tracking branch 'shyotl/sunshine'
Merge remote-tracking branch 'lirusato/Canon'