Hm. I get ```uninitialized constant Capistrano::Slack::ActiveSupport (NameError)```

```
.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/bundler/gems/capistrano-slack-32dd2fcbadba/lib/capistrano/slack.rb:30:in `block (3 levels) in extended': uninitialized constant Capistrano::Slack::ActiveSupport (NameError)
```