Merge pull request #178 from github/angelapwen/2.18.0-changelog

Add entry for CLI v2.18.0

Update CHANGELOG.md

Merge pull request #176 from github/smowton/admin/update-changelog-2.…

…17.5

Update CHANGELOG.md for 2.17.5

Update CHANGELOG.md for release 2.17.4

Merge pull request #175 from github/dbartol/changelog-2.17.3

Update CHANGELOG.md

Update changelog for 2.17.2

Update CHANGELOG.md

Update CHANGELOG.md for release 2.17.0

Update changelog for 2.16.6

Merge pull request #174 from github/aibaars-patch-1

Update CHANGELOG.md for release 2.16.5