Update git submodules
- Update extensions/ConfirmEdit from branch 'REL1_40' to a92ac78e5bcf0d6aab03bdc0d41c00e0b5d0f82b
- Localisation updates from https://translatewiki.net.
Change-Id: Ic788ffcee0fc76505b9f73e2c6596013753f5edf
- Localisation updates from https://translatewiki.net.