message: Remove react 15 support from package.json
diff: "email": "dmtr.kovalenko@outlook.com"
  },
  "peerDependencies": {
  - "react": "^15.6.2 || ^16.0.0",
  - "react-dom": "^15.6.2 || ^16.0.0",
  + "react": "^16.0.0",
  + "react-dom": "^16.0.0",
  "prop-types": "^15.6.0",
  "material-ui": "^1.0.0-beta.18",
  "classnames": "^2.2.5",
  