POM-54. [BREAKING CHANGE] Kiji targets Java JRE 7
POM-54. [BREAKING CHANGE] Kiji targets Java JRE 7

issue: https://jira.kiji.org/browse/POM-54
review: https://review.kiji.org/r/2294
over-the-shoulder-reviewers: ajprax

kijiproject/kiji-delegation