ZMQ example PUBSUB subscriber from `zguide`.
Program description, test on preacher.veox.pw.
Rename file.
Minimal working version.
Authorship, whitespace.
Put servers in a list, use FQDNs if available, rename context var.
Introduce Server class, make serveraddresses list global.
Add another known-good server (obelisk.coinkite.com).
Rework Server with property attributes.

Also, instead of `serveraddresses` (a list), have `serverlist` (a list
of dictionaries).
Prepare for first release.

Added .gitignore, LICENSE, placeholder README.md, and licensed under
Affero GNU GPLv3. The latter should prove useful in the future, when
the script will make more output than just to the console.