Improve package.json file
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.

ludo237/vuejs-carousel,ludo237/photo-gallery,ludo237/photo-gallery,ludo237/vuejs-carousel