Tweaked gitignore

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

conf/site/node_modules/@babel/runtime/helpers/maybeArrayLike.js

@@ -0,0 +1,12 @@
+var arrayLikeToArray = require("./arrayLikeToArray");
+
+function _maybeArrayLike(next, arr, i) {
+  if (arr && !Array.isArray(arr) && typeof arr.length === "number") {
+    var len = arr.length;
+    return arrayLikeToArray(arr, i !== void 0 && i < len ? i : len);
+  }
+
+  return next(arr, i);
+}
+
+module.exports = _maybeArrayLike;