add node modules

node_modules/before-after-hook/lib/remove.js

@@ -0,0 +1,19 @@
+module.exports = removeHook;
+
+function removeHook(state, name, method) {
+  if (!state.registry[name]) {
+    return;
+  }
+
+  var index = state.registry[name]
+    .map(function (registered) {
+      return registered.orig;
+    })
+    .indexOf(method);
+
+  if (index === -1) {
+    return;
+  }
+
+  state.registry[name].splice(index, 1);
+}