title: Unexpected result for select uuid()
body: <p>Running OrientDB 2.2, if I simply execute "select uuid()" in Studio, the result I get is:    <code>rO0ABXNyAA5qYXZhLnV0aWwuVVVJRLyZA/eYbYUvAgACSgAMbGVhc3RTaWdCaXRzSgALbW9zdFNpZ0JpdHN4cLRqgrnPruY1cNh/pBZ9Q/Q=</code></p>
  
  <p>What is this and how do I get a conventional UUID?</p>