kiji-express: EXP-377. Create KijiInput.Builder to replace KijiInput apply methods

issue: https://jira.kiji.org/browse/EXP-377
review: https://review.kiji.org/r/1520
commit: https://github.com/kijiproject/kiji-express/commit/f0e5f8cdc66cfa46d2128a7d3e4ca1fda133ab66
kiji-express-music: EXP-377. Create KijiInput.Builder to replace KijiInput apply methods

issue: https://jira.kiji.org/browse/EXP-377
review: https://review.kiji.org/r/1523
commit: https://github.com/kijiproject/kiji-express-music/commit/85954666bdf6862f6888e6b1d6b3a12838782657