Tweaked gitignore

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

conf/site/node_modules/async/internal/withoutIndex.js

@@ -0,0 +1,12 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+exports.default = _withoutIndex;
+function _withoutIndex(iteratee) {
+    return function (value, index, callback) {
+        return iteratee(value, callback);
+    };
+}
+module.exports = exports["default"];