fix(package): move syntax plugins to deps

fixes #2405

package.json

@@ -1,6 +1,6 @@
 {
   "name": "generator-angular-fullstack",
-  "version": "5.0.0-alpha.0",
+  "version": "5.0.0-alpha.2",
   "description": "Yeoman generator for creating MEAN stack applications, using MongoDB, Express, AngularJS, and Node",
   "keywords": [
     "yeoman-generator",
@@ -40,6 +40,8 @@
     "babel-register": "^6.18.0",
     "babel-plugin-syntax-class-properties": "^6.13.0",
     "babel-plugin-syntax-flow": "^6.18.0",
+    "babel-plugin-syntax-decorators": "^6.13.0",
+    "babel-plugin-syntax-export-extensions": "^6.13.0",
     "babel-plugin-transform-flow-strip-types": "^6.18.0",
     "bluebird": "^3.4.5",
     "chalk": "^1.1.0",
@@ -57,8 +59,6 @@
     "yeoman-welcome": "^1.0.1"
   },
   "devDependencies": {
-    "babel-plugin-syntax-decorators": "^6.13.0",
-    "babel-plugin-syntax-export-extensions": "^6.13.0",
     "babel-plugin-transform-class-properties": "^6.19.0",
     "babel-preset-es2015": "^6.18.0",
     "chai": "^3.5.0",