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				 v2.231 Browser Client Optimizations 
 We are testing a new, more responsive and higher speed single-finger panning for mobile. Provide feedback if not satisfied.
 Other optimizations have been made which should make the browser client more responsive to input.
 
 We are still doing a lot of tweaking to the browser client, so the smallest bothersome things should be reported.
 
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				Computing the probability that at least one of the following events will occur: 
P(a or b ... or z) = 1 - P(!a and !b ... and !z)
Probability |