fix comparison of string to integer which broke 'check all'

svn path=/plone.app.discussion/trunk/; revision=45926

CHANGES.txt

@@ -4,6 +4,9 @@ Changelog
 1.0RC1 (unreleased)
 -------------------
 
+- Fix 'check all' on batch moderation page.
+  [davisagli]
+
 - Use safe_unicode to decode the title of the content. encode("utf-9") caused 
   Dexterity based content types to raise a unicode decode error. This fixes 
   http://dev.plone.org/plone/ticket/11292

plone/app/discussion/browser/javascripts/moderation.js

@@ -108,7 +108,7 @@
 	     * Check or uncheck all checkboxes from the batch moderation page.
 	     **********************************************************************/
 	    $("input[name='check_all']").click(function () {
-	        if ($(this).val() === 0) {
+	        if ($(this).val() === '0') {
 	            $(this).parents("table")
 	                   .find("input:checkbox")
 	                   .attr("checked", "checked");