Update file for translation

- Add  'echo' & gettext function to optimize .po translation.

airtime_mvc/application/views/scripts/form/preferences_danger.phtml

@@ -3,8 +3,7 @@
 
         <div class="warning" style="margin-bottom: 10px;">
             <p class="warning-label">
-                <strong>Warning:</strong> These functions will have <strong>permanent and lasting effects</strong>
-                on your Airtime station. Think carefully before using them!
+                <?php echo _("<strong>Warning:</strong> These functions will have <strong>permanent and lasting effects</strong> on your Airtime station. Think carefully before using them!") ?>
             </p>
         </div>