Merge pull request brianc#735 from brianc/relax-pg-types-version

Relax semver requirement of pg-types

Author: brianc

package.json

@@ -22,7 +22,7 @@
     "generic-pool": "2.1.1",
     "packet-reader": "0.2.0",
     "pg-connection-string": "0.1.3",
-    "pg-types": "1.6.0",
+    "pg-types": "1.*",
     "pgpass": "0.0.3",
     "semver": "^4.1.0"
   },