chore(package): update fake-indexeddb to version 2.1.0

Closes #30

Author: greenkeeper[bot]

package.json

@@ -68,7 +68,7 @@
     "cz-conventional-changelog": "^1.2.0",
     "eslint": "^3.14.0",
     "eslint-plugin-ava": "^4.0.1",
-    "fake-indexeddb": "^1.0.8",
+    "fake-indexeddb": "^2.1.0",
     "fetch-mock": "^5.5.0",
     "husky": "^0.12.0",
     "nyc": "^10.0.0",