title: Edit an AndroidManifest when compiling to remove API-key
body: <p>I'm currently working on an Android project, and learning how to use git.
  I'm blocked because of a problem with git : I have my Google Maps api key declared in my android-manifest file :</p>
  
  <pre><code>&lt;meta-data
      android:name="com.google.android.maps.v2.API_KEY"
      android:value="HEREISMYKEY"/&gt;
  </code></pre>
  
  <p>Now, I'd like to push my code in github, but I can't push my AndroidManifest, because it contains my api key (which is supposed to remain secret).</p>
  
  <p>I'd like to know if there is a way to modify it before every push, or maybe modify it each time I compile my application?</p>
  
  <p>Thank you for your help !</p>