Tweaked gitignore

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

conf/site/node_modules/webpack/lib/web/FetchCompileWasmTemplatePlugin.js

@@ -0,0 +1,37 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const WasmMainTemplatePlugin = require("../wasm/WasmMainTemplatePlugin");
+
+class FetchCompileWasmTemplatePlugin {
+	constructor(options) {
+		this.options = options || {};
+	}
+
+	apply(compiler) {
+		compiler.hooks.thisCompilation.tap(
+			"FetchCompileWasmTemplatePlugin",
+			compilation => {
+				const mainTemplate = compilation.mainTemplate;
+				const generateLoadBinaryCode = path =>
+					`fetch(${mainTemplate.requireFn}.p + ${path})`;
+
+				const plugin = new WasmMainTemplatePlugin(
+					Object.assign(
+						{
+							generateLoadBinaryCode,
+							supportsStreaming: true
+						},
+						this.options
+					)
+				);
+				plugin.apply(mainTemplate);
+			}
+		);
+	}
+}
+
+module.exports = FetchCompileWasmTemplatePlugin;