v3.13.0 NPM version bump (#104)

diff --git a/package.json b/package.json
index 654f279..af298ef 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "openwhisk",
-  "version": "3.12.0",
+  "version": "3.13.0",
   "description": "JavaScript client library for the OpenWhisk platform",
   "main": "lib/main.js",
   "typings": "lib/main.d.ts",