This checklist contains manual tests that needs to be performed when changing heartbeat related code. Ideally these tests should be automated, but since they consist of capturing on a 2nd machine and physically pulling the plug to kill networking in certain ways, using phantomjs for this is quite hard (?). * Pull the plug when slave is fully up and running * Re-insert the plug after slave has been removed. Faye client should have gotten deleted so we get a re-capture. * Pull the plug before the slave sends off its initial heartbeat. * Suspend a laptop, slaves should get recaptured or be still alive.