kiji-express: EXP-450. Cannot create HFiles on YARN

issue: https://jira.kiji.org/browse/EXP-450
review: https://review.kiji.org/r/1925
commit: https://github.com/kijiproject/kiji-express/commit/51f9a394bec8c87cee6e57e21b71c849d4feef87