chore: prepare release 0.15.0 [ci skip]

Author: miroslavstastny

CHANGELOG.md

@@ -17,6 +17,10 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## [Unreleased]
 
+<!--------------------------------[ v0.15.0 ]------------------------------- -->
+## [v0.15.0](https://github.com/stardust-ui/react/tree/v0.15.0) (2018-12-17)
+[Compare changes](https://github.com/stardust-ui/react/compare/v0.14.0...v0.15.0)
+
 ### BREAKING CHANGES
 - `type` prop is replaced with `color` in `Divider` component @layershifter ([#558](https://github.com/stardust-ui/react/pull/558))
 - Remove `createColorVariants` and `setColorLightness` utils @layershifter ([#583](https://github.com/stardust-ui/react/pull/583))