CSS for the removeHistory button in contacts

www/common/common-messaging.js

@@ -284,15 +284,15 @@ define([
         var proxy = common.getProxy();
 
         var $header = $('<div>', {
-            'class': 'cp-contact-top-bar header',
+            'class': 'header',
         }).appendTo($container);
 
         var $avatar = $('<div>', {'class': 'avatar'}).appendTo($header);
 
         var $removeHistory = $('<span>', {
-            'class': 'remove-history fa fa-eraser'
+            'class': 'remove-history fa fa-eraser',
+            title: common.Messages.contacts_removeHistoryTitle
         })
-        // TODO set title
         .click(function () {
             Cryptpad.confirm(common.Messages.contacts_confirmRemoveHistory, function (yes) {
                 if (!yes) { return; }