Upgrade packet reader (brianc#1287)

Author: brianc

package.json

@@ -19,7 +19,7 @@
   "main": "./lib",
   "dependencies": {
     "buffer-writer": "1.0.1",
-    "packet-reader": "0.2.0",
+    "packet-reader": "0.3.1",
     "pg-connection-string": "0.1.3",
     "pg-pool": "1.*",
     "pg-types": "1.*",