chore(*): bump ts

Author: s-panferov

package.json

@@ -66,7 +66,7 @@
     "ps-node": "0.0.5",
     "rimraf": "^2.5.0",
     "tslint": "3.5.0-dev.1",
-    "typescript": "^1.9.0-dev.20160421",
+    "typescript": "^1.9.0-dev.20160509",
     "webpack": "2.1.0-beta.4"
   }
 }