Tweaked gitignore

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

conf/site/node_modules/webpack-cli/bin/utils/validate-options.js

@@ -0,0 +1,21 @@
+const webpackConfigurationSchema = require("../config/webpackConfigurationSchema.json");
+const validateSchema = require("webpack").validateSchema;
+
+module.exports = function validateOptions(options) {
+	let error;
+	try {
+		const errors = validateSchema(webpackConfigurationSchema, options);
+		if (errors && errors.length > 0) {
+			const { WebpackOptionsValidationError } = require("webpack");
+			error = new WebpackOptionsValidationError(errors);
+		}
+	} catch (err) {
+		error = err;
+	}
+
+	if (error) {
+		console.error(error.message);
+		// eslint-disable-next-line no-process-exit
+		process.exit(-1);
+	}
+};