Why did you remove PPCoin Developers and replace it with TurboStake Developers? You should not have changed the line // Copyright (c) 2011-2013 The PPCoin developers to // Copyright (c) 2011-2013 The TurboStake developers. Other peoples work needs to be respected. You have the right to use it but don't claim it as your own.
Q: Can I strip out the copyrights on Open Source code and put in my own?
A: Definitely not! This isn't even about Open Source, really: in general, you should not remove a valid copyright notice, no matter what license it specifies. Copyright notices are legal notices; they are also a source of information about the provenance of source code, and if that information is stripped out, recipients of downstream copies have no easy way to rediscover it.
http://opensource.org/faq#preserve-copyright-noticeshttps://github.com/TurboStake/TurboStake/blob/master/src/main.cpp#L1// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Copyright (c) 2011-2013 The TurboStake developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or
http://www.opensource.org/licenses/mit-license.php.
https://github.com/ppcoin/ppcoin/blob/master/src/main.cpp#L1// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Copyright (c) 2011-2013 The PPCoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or
http://www.opensource.org/licenses/mit-license.php.
The copyright information should be something like this:
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Copyright (c) 2011-2013 The PPCoin developers
// Copyright (c) 2015 The TurboStake developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or
http://www.opensource.org/licenses/mit-license.php.