CC-2425:Tweak phone hom

- done

airtime_mvc/application/forms/RegisterAirtime.php

@@ -136,6 +136,13 @@ class Application_Form_RegisterAirtime extends Zend_Form
                 'ViewHelper'
             )
         ));
+        
+        // checkbox for privacy policy
+        $checkboxPrivacy = new Zend_Form_Element_Checkbox("Privacy");
+        $checkboxPrivacy->setLabel("By checking this box, I agree to Sourcefabric's <a id=\"link_to_privacy\" href=\"\">privacy policy</a>.")
+            ->setDecorators(array('ViewHelper'))
+            ->setValue(1); 
+        $this->addElement($checkboxPrivacy);
     }
 }