merging two apps

[Sebastian Cheung CQF]

Hi Michael,

How would you merge an existing Flask app into flask-boilerplate? For example I was following Flask-SocketIO-Chat

https://github.com/miguelgrinberg/Flask-SocketIO-Chat

and would like to embed this into flask-boilerplate, so that after login, the embedded Chat app could be launched if user clicks on one of the navigation tabs next to logout tab