Remove PHP dependency

[laxu]

To make this project future proof for Whitefox owners, it should be as easy as possible to run this offline. Looking at the code it seems PHP is basically only used for saving files and this should be something that could be easily done with Node.js as well as create a simple web server to run the configurator. Ideally you could get this running on your local host by a few simple commands without having to install PHP or use virtual machines.

[cubiq]

I believe this is already scheduled (even though installing nodejs is not much different than installing php)