Bumped version to 1.3.1.

Author: Prashant Trivedy

package.json

@@ -4,7 +4,7 @@
     "type": "git",
     "url": "https://github.com/passbase/passbase-node.git"
   },
-  "version": "1.3.0",
+  "version": "1.3.1",
   "description": "Passbase API client for NodeJS",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",