Merge pull request bnb-chain#123 from binance-chain/develop

[R4R] Prepare for release v1.0.7

[R4R]appay mirror/sync fork to main-net; release for 1.0.6 (bnb-chain#68

)

* appay mirror/sync fork to main-net; release for 1.0.6

* fix upgrade do not work

prepare for release v1.0.5 (bnb-chain#64)

Merge pull request bnb-chain#50 from binance-chain/p1.0.4

[R4R]add change log for release v1.0.4

Merge pull request bnb-chain#41 from binance-chain/branch_1.0.3

[R4R]prepare release 1.0.3

Merge pull request bnb-chain#32 from binance-chain/releasev1.0.2

[R4R]prepare for release 1.0.2

Merge pull request bnb-chain#27 from binance-chain/1.0.1.beta.2

[R4R]add niels fork

Merge pull request bnb-chain#24 from binance-chain/develop

[R4R] prepare for release 1.0.1-beta

prepare for 1.0.0-beta.1 (bnb-chain#20)

add chain id into sign bytes to avoid replay attack (bnb-chain#18)