- Migrated from https://github.com/Yetangitu/owncloud-apps

- substantial bit rot accrued in 4 years of non-maintenance which made Reader unusable
 - Reader now works reliably on public pages - or at least it _Works For Me™_

 - Refactored a substantial part of the code to comply to the "current" (ha ha) Nextcloud API
 - Dropped Owncloud compatibility for lack of a testing installation
 - Dropped IE (<11) support
 - Dropped compatibility with older (<20) Nextcloud versions
 - Dropped app-specific ajax code, now handled by SettingsController
 - Updated dependencies where applicable

lib/Db/Preference.php

@@ -0,0 +1,42 @@
+<?php
+/**
+ * @author Frank de Lange
+ * @copyright 2015 Frank de Lange
+ *
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace OCA\Files_Reader\Db;
+
+use OCP\AppFramework\Db\Entity;
+
+class Preference extends ReaderEntity implements \JsonSerializable {
+
+    protected $userId;  // user for whom this preference is valid
+    protected $scope;   // scope (default or specific renderer)
+    protected $fileId;  // file for which this preference is set
+    protected $name;    // preference name
+    protected $value;   // preference value
+    protected $lastModified;    // modification timestamp
+
+    public function jsonSerialize() {
+        return [
+            'id' => $this->getId(),
+            'scope' => $this->getScope(),
+            'fileId' => $this->getFileId(),
+            'name' => $this->getName(),
+            'value' => $this->conditional_json_decode($this->getValue()),
+            'lastModified' => $this->getLastModified(),
+        ];
+    }
+
+    public function toService() {
+        return [
+            'name' => $this->getName(),
+            'value' => $this->conditional_json_decode($this->getValue()),
+        ];
+    }
+}
+