kiji-express-examples: Update dependencies for Bento Box 1.2.6 consistency.

commit: https://github.com/kijiproject/kiji-express-examples/commit/c22526bbb2998252f95e68dc8e01c7a65499a28e
kiji-express-music: Update dependencies for BentoBox 1.2.6 consistency.

commit: https://github.com/kijiproject/kiji-express-music/commit/eadf5de0940445c43bd5523c322be9efd6d1e830