fix(package): update connect-mongo to version 2.0.2

Closes #40

Author: greenkeeper[bot]

package.json

@@ -17,7 +17,7 @@
     "clockwork": "^0.1.1",
     "compression": "^1.5.2",
     "connect-assets": "^5.0.1",
-    "connect-mongo": "^1.1.0",
+    "connect-mongo": "^2.0.2",
     "cookie-parser": "^1.3.5",
     "csso": "^2.2.0",
     "d3": "^4.1.1",