Improve package.json file

This changes address the problem related to the issue #10 (thanks @wenxin3262) package.json now allows every node version from the v6.9.0 and above.

I've also updated the version of each dependency so it's stays synchronized.

Author: Claudio Ludovico Panetta

package.json

@@ -1,7 +1,7 @@
 {
   "name": "vuejs-carousel",
   "description": "Complete photo carousel build with VueJS and web standards in mind",
-  "version": "0.5.0",
+  "version": "0.6.0",
   "author": "Claudio Ludovico Panetta <ludovico1990@hotmail.it>",
   "private": false,
   "license": "MIT",
@@ -25,23 +25,22 @@
   "dependencies": {
     "axios": "^0.15.3",
     "moment": "^2.17.1",
-    "vue": "^2.1.6",
-    "vue-resource": "^1.0.3",
-    "vuex": "^2.1.1"
+    "vue": "^2.1.10",
+    "vuex": "^2.1.2"
   },
   "devDependencies": {
-    "babel-core": "^6.0.0",
-    "babel-loader": "^6.0.0",
-    "babel-preset-es2015": "^6.0.0",
-    "cross-env": "^3.0.0",
-    "css-loader": "^0.26.0",
-    "file-loader": "^0.9.0",
-    "vue-loader": "^10.0.0",
-    "vue-template-compiler": "^2.1.0",
-    "webpack": "^2.1.0-beta.25",
-    "webpack-dev-server": "^2.1.0-beta.0"
+    "babel-core": "^6.23.1",
+    "babel-loader": "^6.3.2",
+    "babel-preset-es2015": "^6.22.0",
+    "cross-env": "^3.1.4",
+    "css-loader": "^0.26.1",
+    "file-loader": "^0.10.0",
+    "vue-loader": "^11.0.0",
+    "vue-template-compiler": "^2.1.10",
+    "webpack": "^2.1.1",
+    "webpack-dev-server": "^2.3.0"
   },
   "engines": {
-    "node": "7.2.0"
+    "node": ">=6.9.0"
   }
-}
+}