Close tip popup on click outside the tip box.

Credit: http://stackoverflow.com/a/7385673/2867073

scp/js/tips.js

@@ -213,4 +213,12 @@ jQuery(function() {
         e.preventDefault();
         $(this).parent().parent().remove();
     });
+
+    $(document).live('mouseup', function (e) {
+        var container = $('.tip_box');
+        if (!container.is(e.target)
+            && container.has(e.target).length === 0) {
+            container.remove();
+        }
+    });
 });