Updated nan to v1.3.0

package.json

@@ -41,7 +41,7 @@
     "chalk": "~0.4.0",
     "mkdirp": "~0.3.5",
     "mocha": "~1.18.2",
-    "nan": "~1.2.0",
+    "nan": "~1.3.0",
     "node-watch": "~0.3.4",
     "object-assign": "^0.3.1",
     "optimist": "~0.6.1",