fake-hbase: FAKEHBASE-30. Revert fake-hbase to 2.9.2 (temporarily)

issue: https://jira.kiji.org/browse/FAKEHBASE-30
review: https://review.kiji.org/r/1531
commit: https://github.com/kijiproject/fake-hbase/commit/fdd4f0d672a7820e7df2a8155ba429a95831cd64