Always boot Laravel (#9842)

* Always boot Laravel
That way we can depend on it being available.
Saves us crashes if some code accidentally uses something that isn't booted and a lot of silly if/elses.

* ignore init php errors

validate.php

@@ -130,7 +130,7 @@ if ($pre_checks_failed) {
     exit;
 }
 
-$init_modules = ['laravel'];
+$init_modules = [];
 require 'includes/init.php';
 
 // make sure install_dir is set correctly, or the next includes will fail