removed some fragility within PipelineThrottle.__logFactorial__ be delegating to the stirling approximation sooner. Also clarified the help string within PipelineThrottle.reset
removed some fragility within PipelineThrottle.__logFactorial__ be delegating to the stirling approximation sooner. Also clarified the help string within PipelineThrottle.reset

mina19/approval_processorMP,mina19/approval_processorMP