chore(package): update jest to version 22.1.0

Closes #5

Author: greenkeeper[bot]

package.json

@@ -45,7 +45,7 @@
     "eslint-plugin-react": "^7.4.0",
     "eslint-plugin-react-native": "^3.1.0",
     "husky": "^0.14.3",
-    "jest": "^21.2.1",
+    "jest": "^22.1.0",
     "react": "^16.0.0-alpha.12",
     "react-addons-test-utils": "^15.6.2",
     "react-dom": "^16.0.0-alpha.12",