add rename RF to label setting feature

git-svn-id: https://svn.apache.org/repos/asf/james/hupa/trunk@1522362 13f79535-47bb-0310-9956-ffa450edef68
fixed issue#57 - really disable the tools in toolbar

git-svn-id: https://svn.apache.org/repos/asf/james/hupa/trunk@1522363 13f79535-47bb-0310-9956-ffa450edef68