message: Prepare changelog for v0.14.7-rc.2
diff: +Changes in [0.14.7-rc.2](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v0.14.7-rc.2) (2018-12-06)
  +===============================================================================================================
  +[Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v0.14.7-rc.1...v0.14.7-rc.2)
  +
  + * Ship the babelrc file to npm
  + [\#2332](https://github.com/matrix-org/matrix-react-sdk/pull/2332)
  +
  Changes in [0.14.7-rc.1](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v0.14.7-rc.1) (2018-12-06)
  ===============================================================================================================
  [Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v0.14.6...v0.14.7-rc.1)
  