Fix decoding of HTML entitities in reminder alert

Fixes #2659

NEWS

@@ -6,6 +6,7 @@ Bug fixes
  - disable file paste support in mail editor (#2641)
  - fixed copying/moving messages to a mail folder begining with a digit (#2658)
  - fixed unseen count for folders beginning with a digit and used in Sieve filters (#2652)
+ - fixed decoding of HTML entities in reminder alerts (#2659)
 
 2.2.1 (2014-03-07)
 ------------------

UI/WebServerResources/generic.js

@@ -1477,7 +1477,7 @@ function showAlarmCallback(http) {
             if (data["description"].length)
                 msg += "\n\n" + data["description"];
 
-            window.alert(msg.unescapeHTML());
+            window.alert(msg.decodeEntities());
             showSelectDialog(data["summary"], _('Snooze for '),
                              { '5': _('5 minutes'),
                                '10': _('10 minutes'),