Tweaked gitignore

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

conf/site/node_modules/webpack/lib/node/NodeChunkTemplatePlugin.js

@@ -0,0 +1,31 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const { ConcatSource } = require("webpack-sources");
+
+class NodeChunkTemplatePlugin {
+	apply(chunkTemplate) {
+		chunkTemplate.hooks.render.tap(
+			"NodeChunkTemplatePlugin",
+			(modules, chunk) => {
+				const source = new ConcatSource();
+				source.add(
+					`exports.ids = ${JSON.stringify(chunk.ids)};\nexports.modules = `
+				);
+				source.add(modules);
+				source.add(";");
+				return source;
+			}
+		);
+		chunkTemplate.hooks.hash.tap("NodeChunkTemplatePlugin", hash => {
+			hash.update("node");
+			hash.update("3");
+		});
+	}
+}
+
+module.exports = NodeChunkTemplatePlugin;