Fix problem in server with URI encoding of titles in etags

Fixes #398

core/modules/commands/server.js

@@ -157,7 +157,7 @@ var Command = function(params,commander,callback) {
 			state.wiki.addTiddler(new $tw.Tiddler(state.wiki.getCreationFields(),fields,{title: title}));
 			var changeCount = state.wiki.getChangeCount(title).toString();
 			response.writeHead(204, "OK",{
-				Etag: "\"default/" + title + "/" + changeCount + ":\""
+				Etag: "\"default/" + encodeURIComponent(title) + "/" + changeCount + ":\""
 			});
 			response.end();
 		}