Cleaned up namespacing in routes

Also moved home controller and moved controllers up a level in http.

app/Access/Controllers/RegisterController.php

@@ -7,7 +7,7 @@ use BookStack\Access\RegistrationService;
 use BookStack\Access\SocialAuthService;
 use BookStack\Exceptions\StoppedAuthenticationException;
 use BookStack\Exceptions\UserRegistrationException;
-use BookStack\Http\Controllers\Controller;
+use BookStack\Http\Controller;
 use Illuminate\Contracts\Validation\Validator as ValidatorContract;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Validator;