message: Prepare changelog for v0.14.5-rc.2
diff: +Changes in [0.14.5-rc.2](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v0.14.5-rc.2) (2018-11-15)
  +===============================================================================================================
  +[Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v0.14.5-rc.1...v0.14.5-rc.2)
  +
  + * Update to js-sdk v0.14.0-rc.1 which uses the new Olm API
  + (v0.14.0-rc.1 was broken because of this).
  +
  Changes in [0.14.5-rc.1](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v0.14.5-rc.1) (2018-11-15)
  ===============================================================================================================
  [Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v0.14.4...v0.14.5-rc.1)
  