Update package.json

When running "webpack" an error occured which is described here:
PatrickJS/PatrickJS-starter#1249
    
After changing some pinnings in package.json it worked

collective/jstraining/exercise3/static/package.json

@@ -15,13 +15,13 @@
     }
   ],
   "dependencies": {
-    "@angular/common": "~2.1.0",
-    "@angular/compiler": "~2.1.0",
-    "@angular/core": "~2.1.0",
-    "@angular/forms": "~2.1.0",
-    "@angular/http": "~2.1.0",
-    "@angular/platform-browser": "~2.1.0",
-    "@angular/platform-browser-dynamic": "~2.1.0",
+    "@angular/common": "^2.2.4",
+    "@angular/compiler": "^2.2.4",
+    "@angular/core": "^2.2.4",
+    "@angular/forms": "^2.2.4",
+    "@angular/http": "^2.2.4",
+    "@angular/platform-browser": "^2.2.4",
+    "@angular/platform-browser-dynamic": "^2.2.4",
     "@angular/router": "~3.1.0",
     "core-js": "^2.4.1",
     "rxjs": "5.0.0-beta.12",
@@ -30,7 +30,7 @@
   },
   "devDependencies": {
     "angular2-template-loader": "^0.4.0",
-    "awesome-typescript-loader": "^2.2.4",
+    "awesome-typescript-loader": "2.2.4",
     "css-loader": "^0.23.1",
     "extract-text-webpack-plugin": "^1.0.1",
     "file-loader": "^0.8.5",
@@ -47,7 +47,7 @@
     "raw-loader": "^0.5.1",
     "rimraf": "^2.5.2",
     "style-loader": "^0.13.1",
-    "typescript": "^2.0.2",
+    "typescript": "2.1.1",
     "typings": "^1.3.2",
     "webpack": "^1.13.0",
     "webpack-dev-server": "^1.14.1",