Bug 878700 - Untranslated text in 'Enter PIN' screen

Simple s/data-l10-id/data-l10n-id change as suggested by
Staś Małolepszy at in comment 6 of bug 878700.
Update endurance tests datazilla submission script; a=test-only
Merge pull request #12592 from rwood-moz/endurance_device_codenames

Update endurance tests datazilla submission script; a=test-only
Bug 921808: Check title before setting textContent to avoid repaint
Merge pull request #12344 from overholt/master

Bug 878700 - Untranslated text in 'Enter PIN' screen r=fcampo
Merge pull request #12527 from wanderview/contacts-check-style

Bug 921808: Check title before setting textContent to avoid repaint. r=jmcf