kiji-modeling: [maven-release-plugin] prepare release kiji-modeling-0.2.0

commit: https://github.com/kijiproject/kiji-modeling/commit/7d7d703434a74881a3a16b416e134a4ce37b0d14
kiji-modeling: [maven-release-plugin] prepare for next development iteration

commit: https://github.com/kijiproject/kiji-modeling/commit/4e7e71b651d1ff61da7a5b44de37f468dc0d09f7