kiji-scoring-server: SCORSRVR-1. Update dependency versions

issue: https://jira.kiji.org/browse/SCORSRVR-1
review: https://review.kiji.org/r/1613
commit: https://github.com/kijiproject/kiji-scoring-server/commit/8a95ce71c71a56e6195f923abb0e30b5eb5dd197