Updated R script to generate more detailed latency graphs.  Useful information was being lost in the curve smoothing.
Added ETS driver and config.
Added search query testing to the PB driver and included an example config.  Supports iterating over a list of example queries with a new query per request or on an interval where the same query is run over and over again.  This is very helpful in isolating Search performance and queries that are especially bad actors.
Renamed roll_search_query_list/1 to just be roll_list/1
Merge pull request #100 from nathanaschbacher/nathan_dev

summary.r changes, PB Search testing, and ETS testing.