Update git submodules
- Update BetaFeatures from branch 'master' to 1a681ea22134a3fda60a038d0746bd228edfa3c5
- Localisation updates from https://translatewiki.net.
Change-Id: Ibd48328cf3f13099eb4edc00ab78abc073cd3450
- Localisation updates from https://translatewiki.net.