Bump bem-react-core version to 0.4.2

Author: veged

package.json

@@ -13,7 +13,7 @@
   ],
   "license": "MPL-2.0",
   "dependencies": {
-    "bem-react-core": "0.3.1",
+    "bem-react-core": "0.4.2",
     "prop-types": "15.5.7",
     "react": "15.5.4",
     "react-dom": "15.5.4",