EXP-334 and EXP-257. Create the kiji-express-tools module and split KijiPipe across the flow and tools modules.

issue: https://jira.kiji.org/browse/EXP-334
review: https://review.kiji.org/r/1446
Run KijiPipeTool test in local mode (rather than hdfs) so that a valid input file can be specified.
EXP-348. Scalastyle fails on Macs

issue: https://jira.kiji.org/browse/EXP-348
review: https://review.kiji.org/r/1461
EXP-335. Convert the kiji-express-example project into a module.

issue: https://jira.kiji.org/browse/EXP-335
review: https://review.kiji.org/r/1466
EXP-347. ColumnIn/OutputSpecs were not serialized in HFileKijiScheme.

issue: https://jira.kiji.org/browse/EXP-347
review: https://review.kiji.org/r/1468