Closes #7 Adding "Current status of percolator implementation"

`Note that none of these features have been run at scale. A performance test with a synthetic workload is on the roadmap for 1.0.0.`

I would change this to something like the following.

For alpha a test to excercise some of these features at scale was created, but it was not run at scale for long periods.   One of the goals for the beta is to have a 24hr run of the scale test, on at least 20 nodes, succeed.