Git commits in Moodle 3.0.2 by Juan Leyva

commit ed6277f9f7db369b1510decad4fa7decfbe33165
Author: Juan Leyva <juanleyvadelgado@gmail.com>
Date:   Wed, 09 Dec 2015 21:02:37 +0800
Tag:    v3.0.2

MDL-52457 mod_scorm: Fix return types definitions in SCORM WS

commit d08bcc4ded16fef2a3c953151e2ddae763b93884
Author: Juan Leyva <juanleyvadelgado@gmail.com>
Date:   Mon, 07 Dec 2015 17:54:49 +0800
Tag:    v3.0.2

MDL-52429 mod_scorm: Fix SCORM completion checking in nested SCOs

commit c4e2c3ba9ba45ed4c4ec80a000d01f5ddc5d1880
Author: Juan Leyva <juanleyvadelgado@gmail.com>
Date:   Mon, 16 Nov 2015 23:01:53 +0800
Tag:    v3.0.2

MDL-52072 enrol: Fix course visibility checks in external functions