Re-structured the app code to be feature based rather than code type based

app/Facades/Setting.php

@@ -0,0 +1,16 @@
+<?php namespace BookStack\Facades;
+
+use Illuminate\Support\Facades\Facade;
+
+class Setting extends Facade
+{
+    /**
+     * Get the registered name of the component.
+     *
+     * @return string
+     */
+    protected static function getFacadeAccessor()
+    {
+        return 'setting';
+    }
+}