kiji-schema: SCHEMA-673. Fix versions in submodules to match the parent pom.

issue: https://jira.kiji.org/browse/SCHEMA-673
review: https://review.kiji.org/r/1731
over-the-shoulder-reviewers: ajprax
commit: https://github.com/kijiproject/kiji-schema/commit/6e63932bd1861862443f318b9b2aa0234e6ddf5e