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

Release 1.7.1

Merge pull request EOSIO#7050 from EOSIO/dump-to-1.6.4

Bump version to 1.6.4

Merge pull request EOSIO#6928 from EOSIO/merge-release-1.7.0

Merge release 1.7.0 into master

Merge pull request EOSIO#6887 from EOSIO/bump-to-1.7.0-rc2

Bump version to 1.7.0-rc2

Merge pull request EOSIO#6886 from EOSIO/bump-to-1.6.3

Bump version to 1.6.3

Merge pull request EOSIO#6885 from EOSIO/bump-to-1.5.7

Bump version to 1.5.7

Merge pull request EOSIO#6808 from EOSIO/feature/bump-version-to-1.7.…

…0-rc1

bump version to 1.7.0-rc1

Merge pull request EOSIO#6784 from EOSIO/merge-1.6.2

Merge 1.6.2

Merge pull request EOSIO#6745 from EOSIO/bump-version-1.5.6

Bump version to 1.5.6

Merge pull request EOSIO#6711 from EOSIO/merge-1.6.1-master

Merge 1.6.1 master