Git commits in Moodle 1.8.8 by pichetp

commit a2816b744735287b92ede2ad0000154c7a5f7d99
Author: pichetp <pichetp>
Date:   Fri, 05 Dec 2008 01:44:29 +0900
Tag:    v1.8.8

MDL-17524 Merging from HEAD Deleting a calculated question delete datasetdefinitions shared by other question

commit c589f054b464a3b270194e237c853104b035cbbd
Author: pichetp <pichetp>
Date:   Sat, 15 Nov 2008 19:17:51 +0900
Tag:    v1.8.8

MDL-17104 better delete of unused sub questions, merge from HEAD