Feature request: quiet mode

It would be really nice to be able to start a long run, and instead of getting a long scrolling list where most of the time I can't see what's executing, instead have an in-place display, updated appropriately and consisting of:
- Possibly the options involved (may be too long-winded)
- Current / total test count, e.g. "Running test 32/152"
- Name of currently running test
- Maybe the results of the previous test, for the sake of interest?
- Current execution time and estimated total time (or remaining time)

I don't know enough about the execution timing to know whether estimating the total remaining time is viable, but I _suspect_ it is... we have a target time for each test, right?