title: Issues observed in PSPDFKit after upgrading to latest version 5.1.5
body: <p>I am using PSPDFKit in one of my applications and recently I have updated its version using cocoa-pods </p>
  
  <p>I have observed some number of errors after upgrading PSPDF kit to the latest version.</p>
  
  <p>The xCode version I am using is 6.4.</p>
  
  <p>Some of errors are: While importing PSPDFKit its showing an error as  <a href="http://i.stack.imgur.com/M7oSc.png" rel="nofollow">"<strong>Could not build module PSPDFKi</strong>t"</a></p>
  
  <p><a href="http://i.stack.imgur.com/yxYBk.png" rel="nofollow">and the other errors shown in the image</a>.
  Please suggest.</p>