SCHEMA-609. Fix typos in KijiReaderFactory

issue: https://jira.kiji.org/browse/SCHEMA-609
review: https://review.kiji.org/r/1467
SCHEMA-611. ColumnReaderSpecs specifying specific record avro schemas are not serializable.

issue: https://jira.kiji.org/browse/SCHEMA-611
review: https://review.kiji.org/r/1474
SCHEMA-612.  Fix copy-paste error in withTable javadoc.

review: https://review.kiji.org/r/1480
issue: https://jira.kiji.org/SCHEMA-612
SCHEMA-613. Adds a unique mapred.output.dir to AbstractKijiIntegrationTest

issue: https://jira.kiji.org/browse/SCHEMA-613
SCHEMA-610. KijiTableReaderOptions Builder should return a built reader instead of an Options object

issue: https://jira.kiji.org/browse/SCHEMA-610
review: https://review.kiji.org/r/1494
SCHEMA-557. Move away from HTablePool

issue: https://jira.kiji.org/browse/SCHEMA-557
review: https://review.kiji.org/r/1449