Fixed bugs when there are no queries in the query phrasebook and remo…

…ve last empty line from export API

Fixes #1

library/Itop/RestApiClient.php

@@ -95,7 +95,7 @@ public function doExport($query, $no_localize = 1, $fields = '')
 		$export = $fields = array();
 		$tempFile = new \SplTempFileObject();
 		$tempFile->fwrite($response);
-		$tempFile->setFlags(\SplFileObject::READ_CSV);
+		$tempFile->setFlags(\SplFileObject::READ_CSV | \SplFileObject::READ_AHEAD | \SplFileObject::SKIP_EMPTY | \SplFileObject::DROP_NEW_LINE);
 		$tempFile->setCsvControl(',','"','"');
 
 		foreach ($tempFile as $key => $row)
@@ -164,7 +164,7 @@ public function doRestCall($operation, $data = array())
 			throw new Exception('Parsing JSON result failed: ' . $message);
 		}
 
-		if ($response->code != 0)
+		if (!isset($response->code) or $response->code != 0)
 		{
 			throw new Exception($response->message);
 		}

library/Itop/Util.php

@@ -31,6 +31,8 @@ public static function enumQueries($resourceName)
 			'key' => 'SELECT QueryOQL WHERE fields != ""',
 			'output_fields' => 'name',
 		));
+
+		if(!isset($response->objects)) return array();
 
 		$queries = array();
 		foreach($response->objects as $object)