Disallow live updates when Heartbeat is missing
Add missing arg to success callback
Fixing conditional syntax to pass jshint
Use the window object for alerts in JS
If Live Updates are already enabled when host disables heartbeat, uncheck the checkbox
Const for user meta key, force set user meta if no Heartbeat
Docblock goodness
Plugins could be blocking Heartbeat too, not just hosts
Merge pull request #600 from x-team/issue-599

Disallow live updates when Heartbeat is missing