Merge pull request EOSIO#7620 from EOSIO/merge-release-1.8.1-to-master

Merge release 1.8.1 to master

Merge pull request EOSIO#7556 from EOSIO/merge-release-1.8.0-to-master

Merge release 1.8.0 to master

Merge pull request EOSIO#7466 from EOSIO/merge-release-1.7.4-to-master

Merge release 1.7.4 to master

Merge pull request EOSIO#7463 from EOSIO/bump-version-to-1.6.6

Bump version to 1.6.6

Merge pull request EOSIO#7363 from EOSIO/bump-version-to-1.8.0-rc2

Bump version to 1.8.0-rc2

Merge pull request EOSIO#7235 from EOSIO/bump-version-to-1.8.0-rc1

Bump version to 1.8.0-rc1

Merge pull request EOSIO#7216 from EOSIO/merge-release-1.7.3-to-master

Merge release 1.7.3 to master

Merge pull request EOSIO#7209 from EOSIO/bump-to-1.6.5

Bump to 1.6.5

Merge pull request EOSIO#7155 from EOSIO/merge-release-1.7.2-to-master

Merge release 1.7.2 to master

Merge pull request EOSIO#7052 from EOSIO/release-1.7.1

Release 1.7.1