- add ResumptionToken for OAI-ListIdentifiers

- max identifiers and reciords via config
- add constants.php
- add clear-expired command for deleting obsolete cache

config/app.php

@@ -13,6 +13,8 @@ return [
     |
     */
 
+    'workspacePath' => storage_path() . DIRECTORY_SEPARATOR . "workspace",
+
     'name' => env('APP_NAME', 'App'),
     
      /*

config/oai.php

@@ -0,0 +1,22 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Application Name
+    |--------------------------------------------------------------------------
+    |
+    | This value is the name of your application. This value is used when the
+    | framework needs to place the application's name in a notification or
+    | any other location as required by the application or its packages.
+    |
+     */
+
+    'workspacePath' => public_path() . DIRECTORY_SEPARATOR . "workspace",
+
+    'max' => [
+        'listidentifiers' => 15,
+        'listrecords' => 15
+    ],
+];