Add headers where missed and update .gitignore with IntelliJ Webstorm directory

Author: enaqx

.gitignore

@@ -6,3 +6,4 @@ lib
 node_modules
 npm-debug.log
 coverage
+.idea

src/executor/__tests__/directives.js

@@ -1,3 +1,12 @@
+/**
+ *  Copyright (c) 2015, Facebook, Inc.
+ *  All rights reserved.
+ *
+ *  This source code is licensed under the BSD-style license found in the
+ *  LICENSE file in the root directory of this source tree. An additional grant
+ *  of patent rights can be found in the PATENTS file in the same directory.
+ */
+
 import { expect } from 'chai';
 import { execute } from '../executor';
 import { describe, it } from 'mocha';

src/type/index.js

@@ -1,3 +1,12 @@
+/**
+ *  Copyright (c) 2015, Facebook, Inc.
+ *  All rights reserved.
+ *
+ *  This source code is licensed under the BSD-style license found in the
+ *  LICENSE file in the root directory of this source tree. An additional grant
+ *  of patent rights can be found in the PATENTS file in the same directory.
+ */
+
 export {
   GraphQLSchema
 } from './schema';