There was a bug that when people turned off sending viewer effects,
they'd also turn off sending LookAt, while there is a seperate
checkbox to turn THAT off, while still seeing their own avatar
happily look around, breaking shared experience (most notably, most
people will be complete oblivious of the fact that they look like
zombies to others and that their friends do not see the same thing
on their screen).
This patch fixes this: both parties now see the same thing. Lookat
and PointAt are only turned off by their respective checkboxes,
and no longer silently influenced by turning off other viewer
effects.
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