Tweaked gitignore

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

conf/site/node_modules/webpack-dev-server/client/utils/getCurrentScriptSource.js

@@ -0,0 +1,22 @@
+'use strict';
+
+function getCurrentScriptSource() {
+  // `document.currentScript` is the most accurate way to find the current script,
+  // but is not supported in all browsers.
+  if (document.currentScript) {
+    return document.currentScript.getAttribute('src');
+  } // Fall back to getting all scripts in the document.
+
+
+  var scriptElements = document.scripts || [];
+  var currentScript = scriptElements[scriptElements.length - 1];
+
+  if (currentScript) {
+    return currentScript.getAttribute('src');
+  } // Fail as there was no script to use.
+
+
+  throw new Error('[WDS] Failed to get current script source.');
+}
+
+module.exports = getCurrentScriptSource;