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

commit: https://github.com/kijiproject/kiji-music/commit/8ada7a178b3429db8af306dbc848358398d47865
kiji-music: [maven-release-plugin] prepare release kiji-music-1.1.4

commit: https://github.com/kijiproject/kiji-music/commit/39a79186fd5b0d2c17da5bc044591dc19ba792b5