Update LICENSE.txt

LICENSE.txt

@@ -81,20 +81,20 @@ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 
-qrcodejs
---------
-
-QRCode for C#4.0 Silverlight is translation of QRCode for JavaScript
-https://github.com/jeromeetienne/jquery-qrcode/
+ZXing
+-----
 
-Copyright (c) 2009 Kazuhiko Arase
+Copyright 2007 ZXing authors
 
-URL: http://www.d-project.com/
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
 
-Licensed under the MIT license:
-  http://www.opensource.org/licenses/mit-license.php
+   http://www.apache.org/licenses/LICENSE-2.0
 
-The word "QR Code" is registered trademark of 
-DENSO WAVE INCORPORATED
-  http://www.denso-wave.com/qrcode/faqpatent-e.html
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.