title: CocoaPods arm64 issue
body: <p>When using Podfile for developing iOS 7 app with Xcode5, we always got this issue. </p>
  
  <p>After some searching, seems like no final resolve from CocoaPods ?  Maybe resolved at this moment when you see this. </p>
  
  <p>How to resolve such issues right now ?</p>
  
  <p>The issue was:
  Pods was rejected as an implicit dependency for 'libPods.a' because its architectures 'armv7 armv7s' didn't contain all required architectures 'armv7 armv7s arm64'</p>