new class qfq-auto-grow for textareas and the like

javascript/src/Main.js

@@ -12,5 +12,12 @@ $(document).ready( function () {
             tablesorterController.setup($(this), i);
         }); // end .each()
 
+        $('.qfq-auto-grow').on('input', function() {
+            if($(this).height() + 10 < $(this).prop('scrollHeight')) {
+                $(this).height($(this).prop('scrollHeight'));
+            }
+        });
+
+
     })(QfqNS);
 });
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