Automatic merge from submit-queue

Change the eviction metric type and fix rate-limited-timed-queue

People how know better convinced me that aggregate counter is better than a gauge for a number of evictions metric. @Q-Lee 

Per discussion with @pwittrock I add a v1.4 label and a cherrypick candidate label. This is a slightly bigger change than I thought, but it fixes a bug in eviction logic, so it's also important.

cc @derekwaynecarr @smarterclayton @timothysc