kiji-delegation: POM-40. Require JDK 7 to compile Kiji projects

issue: https://jira.kiji.org/browse/POM-40
review: https://review.kiji.org/r/2006
commit: https://github.com/kijiproject/kiji-delegation/commit/d700de10e5ba69eb7dfd12f536dfd4a8b9544415
kiji-delegation: [maven-release-plugin] prepare release kiji-delegation-1.1.0

commit: https://github.com/kijiproject/kiji-delegation/commit/08d6308320fed12e234c789f098dd398e1f4a3b6
kiji-delegation: [maven-release-plugin] prepare for next development iteration

commit: https://github.com/kijiproject/kiji-delegation/commit/883383f1c5bf36f9400fd858d22b451c6efee4a5