title: Swift Enumerations .toRaw and .fromRaw with Xcode 6.1
body: <p>In Xcode 6.1, the enumerations <code>toRaw</code> and <code>fromRaw</code> functions don't work anymore:</p>
  
  <pre><code>enum TestEnum : String {
      case A = "a"
      case B = "b"
  }
  
  if let a = TestEnum.fromRaw("a") {
      prinln(a.toRaw())
  }
  </code></pre>
  
  <p>Errors:</p>
  
  <pre><code>'TestEnum' does not have a member named 'toRaw'
  'TestEnum.Type' does not have a member named 'fromRaw'
  </code></pre>