Merged r10836 from trunk (#12298).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.1-stable@10871 e93f8b46-1217-0410-a6f0-8f06a7374b81

public/javascripts/context_menu.js

@@ -25,7 +25,7 @@ function contextMenuClick(event) {
   }
   contextMenuHide();
   if (target.is('a') || target.is('img')) { return; }
-  if (event.which == 1 /*TODO || (navigator.appVersion.match(/\bMSIE\b/))*/) {
+  if (event.which == 1 || (navigator.appVersion.match(/\bMSIE\b/))) {
     var tr = target.parents('tr').first();
     if (tr.length && tr.hasClass('hascontextmenu')) {
       // a row was clicked, check if the click was on checkbox