fix initial model
set reservoirSize = 1000
set reservoirSize = 10000
set reservoirSize = 100000
rs = 1k, initialBatchSize = 0
initialBatchSize = 10
initialBatchSize = 100
Revert "initialBatchSize = 100"

This reverts commit d4458bd7b2c1c704d4ed3cc33c152e30d93fb607.
Revert "initialBatchSize = 10"

This reverts commit 8baa56d473d09dbf1ec787cd0a5d2d97f55994fe.
Revert "rs = 1k, initialBatchSize = 0"

This reverts commit 4815fbf13765f52ccd2a866d29a7b1f9dc0e4d08.
don't fix initial model, set rs = 0
set rs = 1000
set rs = 10000
set rs = 100000
implement configurable init per particle
fix per-particle init: at end, resample from particles according to posterior probability over init data
cosmetic