title: SAPUI5 Formatter is not called
body: <p>I am trying to call a the formatter. e.g. to transform a text to uppercase. I have two formatters, one is in the controller and one is globally in the utils folder.</p>
  
  <p>i tried to call both, but none is called. Can someone help me please :(?</p>
  
  <p>I have a global formatter in utils folder:</p>
  
  <pre class="lang-js prettyprint-override"><code>jQuery.sap.declare("my.app.util.Formatter");
  my.app.util.Formatter = {
  
      toUpperCase: function(sStr) {
          return sStr.toUpperCase();
      }
  
  };
  </code></pre>
  
  <p>and one formatter in my controller (i do the require <code>$.sap.require("my.app.util.Formatter");</code> as well):</p>
  
  <pre class="lang-js prettyprint-override"><code>myControllerToUpperCaseFormatter : function(sStr) {
    console.log('I WILL DO NOTHING!');
    return sStr.toUpperCase();
  }
  </code></pre>
  
  <p>my XML:</p>
  
  <pre><code>&lt;mvc:View controllerName="my.app.view.XXX"
  xmlns:core="sap.ui.core" xmlns:mvc="sap.ui.core.mvc" xmlns:l="sap.ui.layout"
  xmlns:f="sap.ui.layout.form" xmlns:c="sap.ui.core" xmlns="sap.m"&gt;
  &lt;Page class="sapUiFioriObjectPage" title="Test"&gt;
      &lt;content&gt;
  
          &lt;Button text="{path: 'MyModel&gt;/name', formatter: 'my.app.util.Formatter.toUpperCase'}"&gt;&lt;/Button&gt;
  
          &lt;Button text="{path: 'MyModel&gt;/name', formatter: '.myControllerToUpperCaseFormatter' }"&gt;&lt;/Button&gt;
  
      &lt;/content&gt;
  &lt;/Page&gt;
  </code></pre>
  
  <p></p>
  
  <p>Thanks for the help!</p>