Statistics logging not working in multi server environment

[rflatt-reassured]

I'm connecting to the websocket server from two vms, one on a different server. It all seems to work fine except for the dashboard: I get the events displayed at the bottom of the page, but am unable to get any realtime statistics, and the table websockets_statistics_entries is empty.

[rflatt-reassured]

Applying the change from #115 fixed the issue, although not immediately. After stopping and restarting the server a number of times, and reloading and reconnecting to the dashboard several times, it started working.