This bijection version contains some fixes to make twitter-util, finagle and scrooge 'provide' dependencies. Along with that, we have some fixes & code cleanup:

• Add tailrec annotation: https://github.com/twitter/bijection/pull/267
• Remove unused imports: https://github.com/twitter/bijection/pull/269
• Clean up the build and fix some tests: https://github.com/twitter/bijection/pull/272

Thanks @zaneli, @johnynek