Cleaning up notifications before the next test starts (#183)

Author: diemol

bin/cleanup-container.sh

@@ -6,6 +6,8 @@ set +e
 killall --ignore-case --quiet --regexp "chrome.*"
 killall --ignore-case --quiet --regexp "geckodriver.*"
 killall --ignore-case --quiet --regexp "firefox.*"
+# Kill any open notifications so the next test does not see them
+killall --ignore-case --quiet --regexp "xfce4-notifyd.*"
 
 # After transferring the logs: reset them for the next test
 for filename in /var/log/cont/*.log; do