chore - update typings version to ^0.7.12 (#433)

Author: dominikstrasser

addon/ng2/blueprints/ng2/files/package.json

@@ -34,6 +34,6 @@
     "ts-node": "^0.5.5",
     "tslint": "^3.6.0",
     "typescript": "^1.8.7",
-    "typings": "^0.6.6"
+    "typings": "^0.7.12"
   }
 }