Display the errors to the user
Hide the query, unless APP_DEBUG=true in .env
Much easier to display output for other exceptions now, just need to add a render() function to them
* Add support for custom MySQL unix-socket
* NULL must be lowercase!
* Naive edit of html/install.php
* fixup
* Refactor dbConnect
Use it everywhere
* $config needs to be global
Don't need to set $database_link
* small cleanups
