Middleware to detect is update is pending; move Routes into HTTP

app/Http/Middleware/UpdatePending.php

@@ -0,0 +1,39 @@
+<?php
+/**
+ * Determine if an update is pending by checking if there are available migrations
+ * Redirect to the updater if there are. Done as middlware so it can happen before
+ * any authentication checks when someone goes to the admin panel
+ */
+
+namespace App\Http\Middleware;
+
+use App\Services\Installer\MigrationService;
+use Closure;
+
+class UpdatePending
+{
+    private $migrationSvc;
+
+    /**
+     * @param MigrationService $migrationSvc
+     */
+    public function __construct(MigrationService $migrationSvc)
+    {
+        $this->migrationSvc = $migrationSvc;
+    }
+
+    /**
+     * @param \Illuminate\Http\Request $request
+     * @param \Closure                 $next
+     *
+     * @return mixed
+     */
+    public function handle($request, Closure $next)
+    {
+        if (count($this->migrationSvc->migrationsAvailable()) > 0) {
+            return redirect('/update/step1');
+        }
+
+        return $next($request);
+    }
+}