Git commits in Moodle 3.0.0 by Dave Cooper

commit 135efd5116945134d57cbf9d877adace48711691
Author: Dave Cooper <dave@moodle.com>
Date:   Thu, 11 Jun 2015 16:26:15 +0800
Tag:    v3.0.0-beta

MDL-50062 gradebook: Fixed behaviour when changing aggregation mathods.

commit cbb7c6a905d63209f70981a4324bdee5eb918c6f
Author: Dave Cooper <dave@moodle.com>
Date:   Thu, 28 May 2015 15:55:36 +0800
Tag:    v3.0.0-beta

MDL-49497 curl: Add configurable User-Agent unit tests.

commit 300fcae31d9afeaa008ab81c387b01df1f21aa6c
Author: Dave Cooper <dave@moodle.com>
Date:   Thu, 28 May 2015 15:54:31 +0800
Tag:    v3.0.0-beta

MDL-49497 curl: Allow configurable User-Agent.