Upstream Patch: Enable database builder to use WHERE_IN

includes/kohana/modules/database/classes/kohana/database/query/builder.php

@@ -110,6 +110,10 @@ abstract class Kohana_Database_Query_Builder extends Database_Query {
 						// Quote the min and max value
 						$value = $min.' AND '.$max;
 					}
+					elseif ($op === 'IN' AND is_array($value))
+					{
+						$value = '('.implode(',',$value).')';
+					}
 					elseif ((is_string($value) AND array_key_exists($value, $this->_parameters)) === FALSE)
 					{
 						// Quote the value, it is not a parameter