Add Akai LPK25 Keyboard Editor Cask.
user
```ruby
class AkaiLpk25Editor < Cask
  url 'http://6be54c364949b623a3c0-4409a68c214f3a9eeca8d0265e9266c0.r0.cf2.rackcdn.com/453/downloads/lpk25_editor_mac_00.zip'
  homepage 'http://www.akaipro.com/index.php/product/lpk25'
  version 'latest'
  no_checksum
  link 'LPK25_Editor/LPK25 Editor.app'
end
```
assistant