title: Bump version number of framework
body: <p>I am building a framework in Xcode 6, following (more or less) the tutorial here: <a href="https://medium.com/@syshen/create-an-ios-universal-framework-148eb130a46c" rel="nofollow">https://medium.com/@syshen/create-an-ios-universal-framework-148eb130a46c</a></p>
  
  <p>The major change is I change the mach-o setting to static library so I can use the framework for both iOS 7 and iOS 8...</p>
  
  <p>Now, I'd like to consistently maintain the version number of the framework. Is there any best-practice way to do this?</p>
  
  <p>When creating a framework in Xcode 6, the below lines are created:</p>
  
  <pre><code>//! Project version number for Myframework.
  FOUNDATION_EXPORT double MyframeworkVersionNumber;
  
  //! Project version string for Myframework.
  FOUNDATION_EXPORT const unsigned char MyframeworkVersionString[];
  </code></pre>
  
  <p>How do we populate these with real values? The version would increase by 1 for every build, or somethin similar.</p>