title: put a Calendar Entry with Backlink to an app
body: <p>Inside our App there is a "add Calendar entry" function, that opens a Calendar-Entry-Edit-Activity. I'll like to put a link inside the Message, that the user can click to come back to our App with additional Informations. 
  Inside the Manifest we have the following Intent-filter Entry:</p>
  
  <pre><code>&lt;intent-filter&gt;
      &lt;action android:name="android.intent.action.VIEW" / &gt;
      &lt;category android:name="android.intent.category.DEFAULT"
      &lt;category android:name="android.intent.category.BROWSABLE"
      &lt;data android:scheme="http" android:host="our.namespace.de" android:path="/search" /&gt;
  &lt;/intent-filter&gt;
  </code></pre>
  
  <p>to put a link inside like this: </p>
  
  <p><code>http://our.namespace.de/search/some_infos</code></p>
  
  <p>A click on it triggers an Activity-chooser, and every browser is showing up inside that list. How to create a link, only our App listens to? The problem here is that any other type than html will not get recognized as link inside the Calendar-TextView </p>