Git commits in Moodle 3.4.2 by Sara Arjona

commit fa5e817df9fb798c4cfe56e810925d1fb4c34b1d
Author: Sara Arjona <sara@moodle.com>
Date:   Thu, 22 Feb 2018 03:53:19 +0800
Tag:    v3.4.2

MDL-55153 customlang: Remove local DB entries when deleting local file

commit 7a414b05227c5cb7abfcd51d0686db892ec51d1a
Author: Sara Arjona <sara@moodle.com>
Date:   Mon, 12 Feb 2018 15:55:38 +0800
Tag:    v3.4.2

MDL-61421 cohort: Fix cohort_role_sync when a user is in two cohorts

commit 71a1d2bd856a75f25404f869de47161b4421cba0
Author: Sara Arjona <sara@moodle.com>
Date:   Thu, 08 Feb 2018 01:31:43 +0800
Tag:    v3.4.2

MDL-60828 user: Reset current page when filtering/searching users

commit aba9cc490d7fc674b640309d2f1eca3d96913075
Author: Sara Arjona <sara@moodle.com>
Date:   Thu, 08 Feb 2018 01:02:56 +0800
Tag:    v3.4.2

MDL-61365 group: Fix default filter when group mode is visible

commit 59f3aac4ac93cb0acf16b0240a039ad676eb4cd2
Author: Sara Arjona <sara@moodle.com>
Date:   Fri, 02 Feb 2018 21:53:56 +0800
Tag:    v3.4.2

MDL-61249 enrol_manual: Fix end date calculation

commit 85fea314bb9abd860a18b0dfe1ae305d5b3881c0
Author: Sara Arjona <sara@moodle.com>
Date:   Wed, 24 Jan 2018 18:56:32 +0800
Tag:    v3.4.2

MDL-61261 badges: Add email validation during backpack configuration