message: Prepare changelog for v0.9.7
diff: +Changes in [0.9.7](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v0.9.7) (2017-06-22)
  +===================================================================================================
  +[Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v0.9.6...v0.9.7)
  +
  + * Fix ability to invite users with caps in their user IDs
  + [\#1128](https://github.com/matrix-org/matrix-react-sdk/pull/1128)
  + * Fix another race with first-sync
  + [\#1131](https://github.com/matrix-org/matrix-react-sdk/pull/1131)
  + * Make the indexeddb worker script work again
  + [\#1132](https://github.com/matrix-org/matrix-react-sdk/pull/1132)
  + * Use the web worker when clearing js-sdk stores
  + [\#1133](https://github.com/matrix-org/matrix-react-sdk/pull/1133)
  +
  Changes in [0.9.6](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v0.9.6) (2017-06-20)
  ===================================================================================================
  [Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v0.9.5...v0.9.6)
  