```ruby
class FontBitter < Cask
  url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/bitter',
      :using      => :svn,
      :revision   => '50',
      :trust_cert => true
  homepage 'http://www.google.com/fonts/specimen/Bitter'
  version '001.001'
  sha256 :no_check
  font 'Bitter-Bold.ttf'
  font 'Bitter-Italic.ttf'
  font 'Bitter-Regular.ttf'
end
```

Move Bitter to upstream source
user
```ruby
class FontBitter < Cask
  version 'latest'
  sha256 :no_check

  url 'http://www.huertatipografica.com/free_download/36'
  homepage 'http://www.huertatipografica.com/fonts/bitter-ht'

  font 'Bitter-Bold.otf'
  font 'Bitter-BoldItalic.otf'
  font 'Bitter-Italic.otf'
  font 'Bitter-Regular.otf'
end
```
assistant