chore(package): update babel-plugin-transform-class-properties to version 6.16.0

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -40,7 +40,7 @@
     "babel-jest": "15.0.0",
     "babel-loader": "6.2.5",
     "babel-plugin-add-module-exports": "0.2.1",
-    "babel-plugin-transform-class-properties": "6.11.5",
+    "babel-plugin-transform-class-properties": "6.16.0",
     "babel-plugin-transform-object-rest-spread": "6.16.0",
     "babel-preset-es2015": "6.16.0",
     "babel-preset-es2015-native-modules": "6.9.2",