Add direct download version of PaintCode 1.3.4
user
```ruby
class Paintcode < Cask
  url 'http://download.macheist.com/nano4/pc.zip'
  homepage 'http://www.paintcodeapp.com/'
  version '1.3.4'
  sha256 '84e3794458851f42783fb8bebc53a8ca5bd068ddb5ef7fedb27db52e989e39a6'
  link 'PaintCode.app'
end
```
assistant