Merge pull request Kong#1599 from Mashape/hotfix/changelog

hotfix(changelog) missing v0.9.1 fixes/additions

Merge branch 'hotfix/resolve-hosts'

0.9.0rc4 release (Kong#1516)

Merge branch 'release/0.5.5' of github.com:Mashape/kong into release/…

…0.5.5

0.9.0rc3 release (Kong#1489)

release(0.9.0rc2) (Kong#1469)

fix(migrations) + release(0.9.0rc1) (Kong#1452)

Merge branch 'release/0.8.3'

Merge branch 'hotfix/changelog'

Merge release/0.8.1