I have started vueJS app cloning this repo <https://github.com/auth0-blog/vue-jwt-authentication>. I have developed with that for few days and developed some pages with that. Later realized that it was Vue1.0. I then used <https://github.com/vuejs/vue-migration-helper> and migrated to vue 2.0. I have fixed all the errors one by one.

Now when I run the app, it just does not show any error but it was empty.
I dont even get any errors in either browser console or in npm terminal. 
In the Inspect element, `<div id="app"></div>` was empty. Someone please take some time. I have the code in this repo here. <https://bitbucket.org/AswinKP/vuesample>. I am sharing the entire repo because I cant just figure out where I am making a mistake. 

I have researched for this and cant find any such issues. 
I am a beginner in vue js and I am struggling in this for last two days. Thanks in advance.