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

commit: https://github.com/kijiproject/kiji-phonebook/commit/ad6c7c9cc536cc7bf9e15c55ab483f98a590a376
kiji-phonebook: [maven-release-plugin] prepare release kiji-phonebook-1.1.2

commit: https://github.com/kijiproject/kiji-phonebook/commit/a9c2238ef29cb26331e1dca62bde887da7a77c47