Summary:
And add releases that should have been added before (6.6 - 6.8)
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6594
Test Plan: facebook automated test (so much easier than running myself)
Reviewed By: riversand963
Differential Revision: D20649106
Pulled By: pdillinger
fbshipit-source-id: 78832449d9295580282cebf117e3968362fbdc69