Previously it wouldn't work due to using the wrong port numbers.
This commit also has the side effect of fixing the fact that our
frontend tests would send real emails and log events to the real
message log.
(imported from commit f2cf400e6061c089627acba2759d588981ecf5bb)
One way this can happen is if run-dev.py --test is already running. In that
case the one we launch will die with "Address already in use", and we should
alert the user that test results may not be accurate.
(imported from commit 078091cace2cff777b444668b03f96dc208f22fc)
Tim Abbott
Zev Benjamin
Keegan McAllister