Git commits in Moodle 3.4.0 by Daniel Thee Roperto

commit b8243e4164d6c96eaf92bec94579e0c2f46d8080
Author: Daniel Thee Roperto <danielroperto@catalyst-au.net>
Date:   Wed, 22 Feb 2017 12:58:39 +0800
Tag:    v3.4.0-rc1

MDL-58047 gradebook: fix sort by submission order.

commit 6eaa9d2ffbeb71cce305227a9ae6904234801a08
Author: Daniel Thee Roperto <danielroperto@catalyst-au.net>
Date:   Mon, 30 Jan 2017 12:43:01 +0800
Tag:    v3.4.0-beta

MDL-57809 weblib: Added opening disclaimer and file-level phpdocs.

commit b40722fbf7950ccf87a1878d5ec0b50993cededb
Author: Daniel Thee Roperto <danielroperto@catalyst-au.net>
Date:   Mon, 30 Jan 2017 10:37:19 +0800
Tag:    v3.4.0-beta

MDL-57809 weblib: Progress bar and output buffer - added debugging

commit ef8ceb2fc25550ee77c2c14102fa6c3a692b7edb
Author: Daniel Thee Roperto <danielroperto@catalyst-au.net>
Date:   Mon, 30 Jan 2017 10:37:19 +0800
Tag:    v3.4.0-beta

MDL-57809 weblib: Added missing NO_OUTPUT_BUFFERING directive.