update typescript to 2.3.2 (#133)

Author: agubler

package.json

@@ -31,6 +31,6 @@
     "grunt-contrib-uglify": "^2.0.0",
     "grunt-dojo2": "beta1",
     "intern": "~3.4.1",
-    "typescript": "~2.2.1"
+    "typescript": "~2.3.2"
   }
 }