SCHEMA-317. Silence spurious warning about not using GenericOptionsParser.
SCHEMA-318. HBaseKijiBufferedWriter does not close/release resources properly

- fix HBaseKijiBufferedWriter.close()
- update .finalize()
- update counter-test layout to use RKF2

issue: https://jira.kiji.org/browse/SCHEMA-318
review: https://review.kiji.org/r/274
SCHEMA-317. Makes GenericsOptionsParser used flags consistent betweeh Hadoop1 and 2.

review: https://review.kiji.org/r/279/
SCHEMA-319. Provide an iterator around HBaseQualifierPager.

- with some tiny cleanups/fixes to HBaseQualifierPager.

issue: https://jira.kiji.org/browse/SCHEMA-319
review: https://review.kiji.org/r/277