update(package.json): requires 2.4.0 or higher.

* Angular 2.4.x contains template parser fixes for notations used.

package.json

@@ -37,11 +37,11 @@
     "node": ">= 5.4.1 < 7"
   },
   "dependencies": {
-    "@angular/common": "~2.2.4",
-    "@angular/compiler": "~2.2.4",
-    "@angular/core": "~2.2.4",
-    "@angular/platform-browser": "~2.2.4",
-    "@angular/platform-browser-dynamic": "~2.2.4",
+    "@angular/common": "~2.4.0",
+    "@angular/compiler": "~2.4.0",
+    "@angular/core": "~2.4.0",
+    "@angular/platform-browser": "~2.4.0",
+    "@angular/platform-browser-dynamic": "~2.4.0",
     "ace-builds": "^1.2.5",
     "core-js": "^2.4.1",
     "es-module-loader": "^1.3.5",
@@ -51,11 +51,11 @@
     "zone.js": "^0.7.2"
   },
   "devDependencies": {
-    "@angular/compiler-cli": "~2.2.4",
-    "@angular/forms": "~2.2.4",
-    "@angular/http": "~2.2.4",
+    "@angular/compiler-cli": "~2.4.0",
+    "@angular/forms": "~2.4.0",
+    "@angular/http": "~2.4.0",
     "@angular/material": "~2.0.0-alpha.10",
-    "@angular/platform-server": "~2.2.4",
+    "@angular/platform-server": "~2.4.0",
     "@angular/router": "~3.1.1",
     "@angular/tsc-wrapped": "~0.4.0",
     "@angularclass/conventions-loader": "^1.0.2",