Short URLs?

[hamiltont]

I don't see an issue for this, so here's one in case it's just never been brought up.

Currently this is the URL format:

$ gh#1129
$ Objectify FrameworkTest Types: https://github.com/TechEmpower/FrameworkBenchmarks/pull/1129

I'd lvoe to see this instead

$ gh#1129
$ Objectify FrameworkTest Types: http://git.io/7P6RkA

This is what Travis-CI does for their IRC notifications and IMO it's much cleaner. It's also a relatively trusted URL - I think git.io will only shorten URLs to github

[ipmb]

Moved to plugins repo: BotBotMe/botbot-plugins#20