chore(package): update jest to version 22.0.2

Closes #357

Author: greenkeeper[bot]

package.json

@@ -41,7 +41,7 @@
     "gulp": "3.9.1",
     "gulp-rename": "1.2.2",
     "gulp-util": "3.0.8",
-    "jest": "21.2.1",
+    "jest": "22.0.2",
     "prettier": "1.9.2",
     "prettier-config-ikatyang": "1.1.1",
     "ramda": "0.25.0",