title: Xcode 5.1 breaks some tests
body: <p>Since updating to Xcode 5.1, I have been encountering errors while attempting to run unit tests (XCTestSuite). When I run an individual test method, I get the error <code>Error while reading test scope bundle</code> on the console and no result. When I run the full implementation of the test file, I see:</p>
  
  <pre><code>Unable to get entitlements for client task. Error: Error Domain=NSPOSIXErrorDomain Code=-1 "The operation couldn’t be completed. (POSIX error -1 - Unknown error: -1)"
  </code></pre>
  
  <p>Then the tests appear to start running as expected.</p>