chore(package): update proxyquire to version 2.0.1

Closes #166

Author: greenkeeper[bot]

package.json

@@ -26,7 +26,7 @@
     "pouchdb-adapter-memory": "^6.0.7",
     "pouchdb-core": "^6.0.7",
     "pouchdb-replication": "^6.0.7",
-    "proxyquire": "^1.7.6",
+    "proxyquire": "^2.0.1",
     "rimraf": "^2.4.3",
     "semantic-release": "^12.2.2",
     "simple-mock": "^0.8.0",