please retain breadwallet copyright notice and license

[voisine]

The bitheri library appears to have copied large portions from https://github.com/voisine/breadwallet

This is perfectly fine as the code is published under the MIT license, however you've removed the copyright notice. You are free to re-license the code under apache or any other license, but you must retain the original MIT license and copyright notice if you wish to comply with the licensing terms.

Thank You.

[bitwolaiye]

Our project has learned from many open source projects (bitcoind, bitcoin-core/qt, bitcoinj, multibit, bitcoin-wallet, mycelium, and also breadwallet). Maybe there are a few classes learned from breadwallet. Currently we don't have enough time to clean up all of these (we only use scrpits to add license), and we are working hard on developpinig new functions.
Thanks for noticing, we will modify these in later version.

[voisine]

Then you need to retain copyright notices for all the projects that require it to not be in violation of their licensing terms. I submitted a PR for the breadwallet license.

[bitwolaiye]

Sorry for the delay. It is holiday in China from Oct.1st to Oct.7th. Other members of our team are still on vacation now. I came back earlier, so I saw your PR and merged it.

We will retain all related copyright notices in future version.

Thanks for your notice.

[voisine]

I appreciate it. If you have any bug fixes or run into issues that you'd like fixed or changes you think would benefit other breadwallet codebases, I'd be happy to work together on it.

[bitwolaiye]

Thank you. Let's all work hard together to make the Bitcoin easier and safer for normal people to use.