Bumping version from 1.14.0a0 to 1.14.0

Bumping version from 1.13.0a0 to 1.13.0

Bumping version from 1.12.0 to 1.12.1 and updated CHANGELOG.md

Bumping version from 1.12.0-alpha.0 to 1.12.0

Bumping version from 1.11.0-alpha.0 to 1.11.0

Bumping version from 1.10.0-alpha.0 to 1.10.0

Bumping version from 1.9.0-alpha.0 to 1.9.0

Bumping version from 1.8.1-alpha.0 to 1.8.1

Bumping version from 1.8.0-alpha to 1.8.0

Bumping version from 1.7.0-alpha.0 to 1.7.0