Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
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9. Accepting Warranty or Additional Liability.
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END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work
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Copyright 2017 Ray Wang
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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http://www.apache.org/licenses/LICENSE-2.0
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