Couple of bug fixes

• Reported by Raúl over on the GTD list - done/close now works when you rename a tiddler.
• Reported by Chris W - Sync reports change while unplugged when it shouldn't have. This was due to bug in RenameTagsPlugin which Chris also helped locate.

Thanks very much Raúl and Chris. See here for how to update. You only need RenameTagsPlugin and SaveCloseTiddlerPlugin, but there's no harm in fetching them all to make sure you have the latest.