Merge pull request #92 from hfreire/greenkeeper/@angular/compiler-4.2.4

Update @angular/compiler to the latest version 🚀

package.json

@@ -15,7 +15,7 @@
   "dependencies": {
     "@angular/animations": "4.2.4",
     "@angular/common": "4.2.2",
-    "@angular/compiler": "4.2.3",
+    "@angular/compiler": "4.2.4",
     "@angular/core": "4.2.2",
     "@angular/forms": "4.2.3",
     "@angular/http": "4.2.2",