bitbake: toaster: fix javascript for table filters

This patch adds javascript link for resetting page filters
in the tool tip "Show all" button.

Also fixes a JS bug for when the cookie is not set yet.

(Bitbake rev: e123922274ea875105e6ed855b3368b8b77fca64)

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/toaster/toastergui/templates/basetable_bottom.html

@@ -40,6 +40,7 @@
 
     // we load cookies for the column display
     save = $.cookie('_displaycols_{{objectname}}');
+		if (save != undefined) {
     setting = save.split(';');
     for ( i = 0; i < setting.length; i++) {
         if (setting[i].length > 0) {
@@ -52,6 +53,7 @@
             }
         }
     }
+    }
 
     $('.chbxtoggle').each(function () {
         showhideTableColumn($(this).attr('id'), $(this).is(':checked'))