Add formula for Electric Sheep
user
```ruby
class ElectricSheep < Cask
  url 'http://electricsheep.googlecode.com/files/electricsheep-2.7b34.dmg'
  homepage 'http://www.electricsheep.org'
  version '2.7b34'
  sha1 'baeaf679882b4d4793f014d356f017420c42b806'
  install 'Electric Sheep.mpkg'
end
```
assistant