Git commits in Moodle 2.2.x by Valeriy Streltsov

commit 00c7590c95ad594b83f6ad3068c0ebbbd100c5b8
Author: Valeriy Streltsov <vostreltsov@gmail.com>
Date:   Sun, 04 Dec 2011 04:13:59 +0800
Tag:    v2.2.1

MDL-30562 qtypes: extra_answer_fields & questionid_column_name public