Fixed normal bug EXT-6673 (Default sort order of Nerby People list should be...

Fixed normal bug EXT-6673 (Default sort order of Nerby People list should be by most recent speaker) - corrected the default setting for nearby people sort order.
Reviewed by Vadim Savchuk, https://codereview.productengine.com/secondlife/r/175/.

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branch : product-engine