Add Redis Desktop Manager 0.6.2
user
```ruby
class RedisDesktopManager < Cask
  url 'https://github.com/uglide/RedisDesktopManager/releases/download/0.6.2/rdm-0.6.2.dmg'
  homepage 'http://redisdesktop.com'
  version '0.6.2'
  sha1 '9b76691d37558e1c94ffd446279b90e68c3b60b1'
  link 'rdm.app'
end
```
assistant