When the websocket is broken gracefully reload the site.

[johnrtipton]

When the websocket is broken, the site currently displays an alert dialog asking the user to reload the page.

This patch gracefully tries to reload the site, backing off to 1 minute per retry.

[elimintz]

Thank you for this, looks good. Could you please explain why you also removed lines 76 to 78 in main.html?

[knoxvilledatabase]

When I put lines 76 to 78 back, the code gets stuck in a loop.

[johnrtipton]

Thank you for this, looks good. Could you please explain why you also removed lines 76 to 78 in main.html?

Originally, the way I approached it I needed ws_url so I rewrote that a bit. Turns out I didn't need it, but I thought it was a little more concise and left it in the PR. I can remove it if you want.

[WolfgangFahl]

should this go into 0.0.3?