i18n KeyVerificationView

// FREEBIE

background.html

@@ -213,7 +213,7 @@
   <script type='text/x-tmpl-mustache' id='key-verification'>
     <div class='conversation-header'>
         <button class='back'></button>
-        <span class='conversation-title'>Verify Identity</span>
+        <span class='conversation-title'>{{ verifyIdentity }}</span>
     </div>
     <div class='container'>
       <p> Their identity (they read): </p>

js/views/key_verification_view.js

@@ -26,6 +26,7 @@
         },
         render_attributes: function() {
             return {
+                verifyIdentity: i18n('verifyIdentity'),
                 your_key: this.splitKey(this.model.your_key),
                 their_key: this.splitKey(this.model.their_key)
             };