title: xcode 5 can't add the gpuimage project to my xcode project
body: <p>my problem is, that I'll add the GPUImage.xcodeproj file to my xcode project.
  But if I'll do this this window does not appear:</p>
  
  <p><img src="https://i.stack.imgur.com/Nc280.png" alt="enter image description here"></p>
  
  <p>So I can't add the GPUImage Target Dependencie to my project. What am I doing wrong?</p>
  
  <p><img src="https://i.stack.imgur.com/DCQDp.png" alt="enter image description here"></p>