Refactoring the wikitext parser

To match the structure of the JavaScript parser, and make it less
complicated

tiddlywiki.js

@@ -13,7 +13,6 @@ var App = require("./js/App.js").App,
 	Recipe = require("./js/Recipe.js").Recipe,
 	tiddlerInput = require("./js/TiddlerInput.js"),
 	tiddlerOutput = require("./js/TiddlerOutput.js"),
-	WikiTextProcessor = require("./js/WikiTextProcessor.js").WikiTextProcessor,
 	util = require("util"),
 	fs = require("fs"),
 	url = require("url"),