fab6d6b Move pindexBestInvalid to ChainstateManager (MarcoFalke)
facd213 Move m_failed_blocks to ChainstateManager (MarcoFalke)
fa47b5c Move AcceptBlockHeader to ChainstateManager (MarcoFalke)
fa3d62c Move FindForkInGlobalIndex from BlockManager to CChainState (MarcoFalke)

Pull request description:

  Move globals or members of the wrong class to the right class.

ACKs for top commit:
  naumenkogs:
    ACK fab6d6b
  Sjors:
    ACK fab6d6b
  shaavan:
    ACK fab6d6b

Tree-SHA512: 926cbdfa22838517497bacb79ed5f521f64117c2aacf96a0176f62831b4713314a32abc0213df5ee067edf63e4a4300f752a26006d36e5aab415bb91209a271f