add CheckActiveChain at AppInit2()

Signed-off-by: franklin <flin1866@gmail.com>
modify nTargetSpacing

Signed-off-by: franklin <flin1866@gmail.com>
Merge branch 'workspace' of github.com:DSPay/DSValue
add a logically:only the SendCheckPoint is send and then send the lottkey.
add some log and fix the SendCheckPoint bug.
improve the lottokey file MerkleRoot manger
Merge remote-tracking branch 'remotes/bess/workspace'
Merge branch 'workspace' of github.com:DSPay/DSValue
bruce improves the log implementation.