Copyright 2018 Hanyazou <hanyazou@gmail>

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this package except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   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.

The above license applies to all contributions.

Tello.py and crc.py were derived from the DJI Tello driver of the GOBOT
project, which are licensed under Apache 2.0 also. For original copyroght
information, see https://github.com/hybridgroup/gobot.
