Use type-checker at root

Author: durran

package.json

@@ -109,6 +109,7 @@
     "hadron-module-cache": "^0.0.3",
     "hadron-package-manager": "0.1.0",
     "hadron-reflux-store": "^0.0.2",
+    "hadron-type-checker": "^0.4.0",
     "highlight.js": "^8.9.1",
     "jquery": "^2.1.4",
     "keytar": "3.0.2",