Merge pull request EOSIO#8093 from EOSIO/merge-release-1.8.5-to-master

Merge release 1.8.5 to master

fix sync stable checkpoints

fix sync stable checkpoints

Merge pull request EOSIO#8035 from EOSIO/bump_version_2.0.0-rc1

bump version to v2.0.0-rc1

Merge pull request EOSIO#7981 from EOSIO/merge-release-1.8.4-to-master

Merge release 1.8.4 to master

Merge pull request EOSIO#7976 from EOSIO/bump-version-to-1.7.7

Bump version to 1.7.7

add watermark check

Merge pull request EOSIO#7897 from EOSIO/merge-release-1.8.3-to-master

Merge release 1.8.3 to master

Merge pull request EOSIO#7895 from EOSIO/bump-version-to-1.7.6

Bump version to 1.7.6

Do not update connection fork_head info if in lib_catchup since we sh…

…ortcut out in that situation.

(cherry picked from commit f1a4b5c)