title: Language variables in i18next
body: <p>I'm using <code>i18next</code> for the internationalization of an application.</p>
  
  <p>I am initializing it like this:</p>
  
  <pre><code>i18n.init({debug: false, getAsync: false, resGetPath: _this.buildPath + _this.i18nPath + '__lng__/__ns__.json'});
  </code></pre>
  
  <p>What do the variables <code>__lng__</code> and <code>__ns__</code> stand for?</p>