title: Change .ipa name according to build date
body: <p>I am showing the build date and build number in About page of my app like this:</p>
  
  <pre><code>   NSString *details = [NSString stringWithFormat:@"Build date: %@ _%@",[NSString stringWithUTF8String:__DATE__],[self build]];
     self.versionDetails.hidden=!kShowVersionDetails;
     self.versionDetails.text = details;
  
  -(void) build{
        return [[NSBundle mainBundle] objectForInfoDictionaryKey: (NSString *)kCFBundleVersionKey];
  }
  </code></pre>
  
  <p>Which shows like Build date: 24 Aug 2015 (1)</p>
  
  <p>Now I would like to rename my .ipa according to the build date. Currently the name is Myapp.ipa and I would like to rename it to Myapp(24 Aug 2015_1).ipa. </p>
  
  <p>How can I do that through a bash script so that when I archive a package it will display <strong>Myapp(24 Aug 2015_1).ipa</strong> instead of <strong>Myapp.ipa</strong>?</p>