added an indent= attribute to link items in left menus and fixed another couple

of minor bugs

src/com/silverwrist/util/ServletMultipartHandler.java

@@ -467,6 +467,12 @@ public final class ServletMultipartHandler
     
   } // end getParamNames
 
+  public final boolean hasParameter(String name)
+  {
+    return param_byname.containsKey(name);
+
+  } // end hasParameter
+
   /**
    * Returns whether or not the parameter with the specified name is a file parameter.
    *