Tweaked gitignore

gitignore removed all composer and npm files, so automated builds would fail

conf/site/node_modules/webpack/lib/WebpackError.js

@@ -0,0 +1,31 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Jarid Margolin @jaridmargolin
+*/
+"use strict";
+
+const inspect = require("util").inspect.custom;
+
+class WebpackError extends Error {
+	/**
+	 * Creates an instance of WebpackError.
+	 * @param {string=} message error message
+	 */
+	constructor(message) {
+		super(message);
+
+		this.details = undefined;
+		this.missing = undefined;
+		this.origin = undefined;
+		this.dependencies = undefined;
+		this.module = undefined;
+
+		Error.captureStackTrace(this, this.constructor);
+	}
+
+	[inspect]() {
+		return this.stack + (this.details ? `\n${this.details}` : "");
+	}
+}
+
+module.exports = WebpackError;