SCHEMA-815. Fix fake ZooKeeper namespacing

issue: https://jira.kiji.org/browse/SCHEMA-815
review: https://review.kiji.org/r/1922
SCHEMA-790. Implement BufferedKijiTableWriter Interface w/ AsyncHBase

Implement a BufferedKijiTableWriter interface using AsyncHBase instead of HTable.
Rewrote AsyncKijiBufferedWriter to use AsyncHBase's internal time-based buffer.
Updated AsyncKijiTableWriter and AsyncKiji as necessary to work with that change.
Cleaned up some formatting, declared method arguments 'final', and updated some deprecated methods.
Merge pull request #202 from GabeBenjamin/SCHEMA-790

Schema 790