take another chunk of mv-throttle-3 for actual use.
add exponential smoothing from mv-throttle-3 and start removing other smoothings.  not fully tuned.
minor tuning adjustments and one fix to timer.
this works great.  needs a little more code to cover an imagined edge case.
nice tuning to new throttle
add Dec() to pref stats.  put smoothing on throttle reduction.
remove throttle multiplier for batched writes (AAE killer)
add perf counters for throttle and add level0 data for fallback throttle seed
change throttle constants (17 smoothing, 63 periods) and remove syslog message
Merge pull request #67 from basho/mv-throttle-3b

Mv throttle 3b