MySQLi dependency

[Remo]

Not sure why, but it looks like you're manually establishing a connection using mysqli. Why not use the built-in laravel functionality? At least mention mysqli in the readme. I was expecting that my laravel capable host would work for doptor.

[Doptor-zz]

Thank you Remo,
Your contribution is much more appreciated.
We are in heavy pressure, pls feel free pull request.
Tq
Doptor team