message: Prepare changelog for v1.0.3
diff: +Changes in [1.0.3](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v1.0.3) (2019-03-06)
  +===================================================================================================
  +[Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v1.0.2...v1.0.3)
  +
  + * Don't duplicate direct chats from other tags
  + [\#2762](https://github.com/matrix-org/matrix-react-sdk/pull/2762)
  + * Include tag name when warning about rooms running off lists
  + [\#2761](https://github.com/matrix-org/matrix-react-sdk/pull/2761)
  + * Always insert rooms into lists when they get lost
  + [\#2760](https://github.com/matrix-org/matrix-react-sdk/pull/2760)
  + * Fix the ctrl+k shortcut
  + [\#2759](https://github.com/matrix-org/matrix-react-sdk/pull/2759)
  +
  Changes in [1.0.2](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v1.0.2) (2019-03-06)
  ===================================================================================================
  [Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v1.0.2-rc.4...v1.0.2)
  