Merge branch 'master' into dev

Merge pull request ava-labs#368 from ava-labs/local-genesis

Upgrade local genesis to include apricot phase 1 block timestamp

Merge pull request ava-labs#353 from ava-labs/update_snappy

Updating snappy compression to address arm issues

Merge pull request ava-labs#351 from ava-labs/bump-coreth

Bump coreth to v0.3.27

updated linux-release script

increased coreth version

Merge pull request ava-labs#801 from ava-labs/dev

v1.2.3

Merge pull request ava-labs#799 from ava-labs/bump-coreth-v0.3.25

bumped coreth version

bumped version to 1.2.1

Merge pull request ava-labs#768 from ava-labs/improve-cchain-snowman

Improve cchain snowman