COMPASS-101: Bump hadron-build with updated codesign

Author: durran

package.json

@@ -159,7 +159,7 @@
     "chai-as-promised": "^5.1.0",
     "electron-prebuilt": "1.2.8",
     "eslint-config-mongodb-js": "^2.2.0",
-    "hadron-build": "^1.0.0-beta.1",
+    "hadron-build": "^1.0.0-beta.2",
     "mocha": "^2.3.4",
     "mongodb-js-precommit": "^0.2.9",
     "mongodb-runner": "^3.2.0",