- update permissions

- change xml tag to perm

lib/private/connector/sabre/filesplugin.php

 
 		$server->xmlNamespaces[self::NS_OWNCLOUD] = 'oc';
 		$server->protectedProperties[] = '{' . self::NS_OWNCLOUD . '}id';
-		$server->protectedProperties[] = '{' . self::NS_OWNCLOUD . '}permissions';
+		$server->protectedProperties[] = '{' . self::NS_OWNCLOUD . '}perm';
 
 		$this->server = $server;
 		$this->server->subscribeEvent('beforeGetProperties', array($this, 'beforeGetProperties'));

lib/private/connector/sabre/node.php

 		if ($this->info->isMounted()) {
 			$p .= 'M';
 		}
+		if ($this->info->isDeletable()) {
+			$p .= 'D';
+		}
+		if ($this->info->isDeletable()) {
+			$p .= 'N';
+		}
 		if ($this->info->getType() === \OCP\Files\FileInfo::TYPE_FILE) {
 			if ($this->info->isUpdateable()) {
 				$p .= 'W';
 			}
 		} else {
-			if ($this->info->isDeletable()) {
-				$p .= 'D';
-			}
 			if ($this->info->isUpdateable()) {
 				$p .= 'CK';
 			}