More servers with Hidden Service. Certificate retrieval instructions.

[dllud]

Since @chrisballinger mentioned that:

we need a good list of servers for people to migrate.

I took the effort and searched the entire XMPP Compliance Suite List for any servers with Tor Hidden Service that I had missed before. The full result is at Public XMPP servers with Tor Hidden Service. Here I am adding the new ones that have In-Band registration enabled: jabjab.de, jabber.cat, chatme.im, dismail.de, hot-chilli.net, jabber.systemausfall.org, im.koderoot.net and evil.im.

I've also added new instructions to the README on how to retrieve the certificate directly from the server, avoiding xmpp.net which is currently offline.

[chrisballinger]

Awesome, thank you! We need XEP-0357 and XEP-0363 for the clients to work properly, are you able to include those in the results? You can omit other extensions, these are really the only two that I think are fully required (we still disable XEP-0357 if an account is created over Tor though). I reopened issue #1

{
"domain": "example.com",
"extensions": ["XEP-0357", "XEP-0363"]
}

[dllud]

Done.

[chrisballinger]

Great! I'll merge this and include in the next build.

One small request, when you include icons, could you make sure they are square-ish? It gets displayed in the UI with a 1:1 aspect ratio, and even if using aspect scaling it looks pretty weird.

[chrisballinger]

@dllud Just to double check, is the "server" entry the result of SRV lookup? Some servers have a domain of example.com and a server of xmpp.example.com. It was mainly there to make it possible for users to connect via Tor for servers without .onions because SRV lookups are not possible over Tor. I should have documented this in the README, sorry.

[dllud]

Sorry, indeed I had it wrong in the newest entries. Thanks for the precious double-check. Pull request fixing this at #17.