Git commits in Moodle 2.3.0 by Yang Yang

commit 25ccaf54949cfafc1f61572dba203a3a76700089
Author: Yang Yang <doraemonyoung@yahoo.com>
Date:   Tue, 05 Jun 2012 09:42:30 +0800
Tag:    v2.3.0-beta

MDL-31863 Web service : added modified to parameters and modifiedtime to description

commit 8f3039576a76c3992d68637bf1a526de5ab1e157
Author: Yang Yang <doraemonyoung@yahoo.com>
Date:   Tue, 05 Jun 2012 09:42:30 +0800
Tag:    v2.3.0-beta

MDL-31863 Web service : added modified to parameters and modifiedtime to description

commit 03d38b9207fa02592ccee9128eed828769f5ad56
Author: Yang <doraemonyoung@yahoo.com>
Date:   Tue, 15 May 2012 13:40:58 +0800
Tag:    v2.3.0-beta

MDL-32998 add warnings structure