chore(package): update react-test-renderer to version 16.4.0

Closes #32

Author: greenkeeper[bot]

package.json

@@ -23,7 +23,7 @@
     "jest": "^19.0.2",
     "lerna": "2.0.0-rc.1",
     "react-addons-test-utils": "^15.4.2",
-    "react-test-renderer": "^15.4.2",
+    "react-test-renderer": "^16.4.0",
     "ts-jest": "^19.0.3",
     "tslint": "^5.0.0",
     "typescript": "^2.2.1"