title: react-redux-I18n locale update with I18n.t helper
body: <p>I'm using <code>react-redux-i18n</code> and I'm having issue updating the <code>I18n.t helper</code></p>
  
  <p>I have a button calling an action which dispatch the setLocale of <code>react-redux-i18n</code> :</p>
  
  <pre><code>&lt;FlatButton
          label={languageToDisplay}
          labelStyle={styles.buttonLabel}
          onClick={() =&gt; this.props.actions.setLanguage(languageToDisplay)}
          style={styles.button}
        /&gt;
  </code></pre>
  
  <p>Which call this function: </p>
  
  <pre><code>export default function setLanguage(language: string) {
    return async (dispatch) =&gt; {
      dispatch(setLocale(language));
    };
  }
  </code></pre>
  
  <p>While it does change the <code>I18n._locale</code>, it doesn't re-render and translate the text. Anyone got an idea as how to fi it?</p>
  
  <p>I'm using <code>react-redux-i18n</code> because I like the <code>react-native</code> way to translate which is : <code>I18n.t(...)</code></p>
  
  <p>It's clean and it doesn't force weird component only for the translation such as <code>&lt;FormationMessage /&gt;</code> or <code>&lt;Translate /&gt;</code></p>
  
  <p>If anyone know how to fix it or have another library in the same style of translation as <code>react-redux-i18n</code>, please let me know :)</p>