Fixed license field in package.json.

package.json

@@ -60,7 +60,7 @@
       "name": "Jeffrey Phillips Freeman <freemo@gmail.com>"
     }
   ],
-  "license": "Apache v2",
+  "license": "Apache-2.0",
   "devDependencies": {
     "@angular/compiler-cli": "^0.6.0",
     "@angular/platform-server": "^2.0.0-rc.6",