kiji-schema-shell: SCHEMA-604. Support for MapR

issue: https://jira.kiji.org/browse/SCHEMA-604
review: https://review.kiji.org/r/1457
commit: https://github.com/kijiproject/kiji-schema-shell/commit/7f356eca8ad17b36bdbfa5de0eaa78bcc7e71f78