Add my KeePassX (0.4.x-svn) retina fork
user
```ruby
cask :v1 => 'dwihn0r-keepassx' do
  version '0.4.4'
  sha256 '53ae446d458ef0ab6dae268ba17b0eb9779959f3f821552de89122bd434769e2'

  url "https://github.com/dwihn0r/keepassx/releases/download/v#{version}/KeePassX-#{version}-OSX.zip"
  homepage 'https://github.com/dwihn0r/keepassx/'
  license :oss

  app 'KeePassX.app'
end
```
assistant