kiji-bento: [maven-release-plugin] prepare for next development iteration

commit: https://github.com/kijiproject/kiji-bento/commit/a044ef4c21d9d58ee724a9910a6818ed733d16de
kiji-bento: [maven-release-plugin] prepare release kiji-bento-root-2.0.0

commit: https://github.com/kijiproject/kiji-bento/commit/e0981d1f4b755df85b9027d8e7335bc8c0e0b18c