chore(release): 1.21.0 [skip ci]
chore(release): 1.21.0 [skip ci]

# [1.21.0](https://github.com/datorama/akita/compare/v1.20.0...v1.21.0) (2018-11-18)

### Features

* **query-entity:** provide index in filter function ([#118](https://github.com/datorama/akita/issues/118)) ([b12f451](https://github.com/datorama/akita/commit/b12f451))

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