Fix script matching in exercise.sh

This prevents false matches in exercise skip test

Change-Id: I5656a20bcf11b2ccaf55e280655d0600124adedc
Use new RPC notifier

Stop using the deprecated rabbit_notifier.

Change-Id: I84574c555031b23fb5f256d248af1cdafc8979ce
Signed-off-by: Julien Danjou <julien@danjou.info>
Merge "Fix script matching in exercise.sh"
Merge "Use new RPC notifier"