Update git submodules
- Update extensions/Scribunto from branch 'REL1_39' to 2f47ad447ffe96067eaae27ff03722be6cf76cd1
- Localisation updates from https://translatewiki.net.
Change-Id: I02d55f9f0941ae87acae3c7ea628614aa7d92811
- Localisation updates from https://translatewiki.net.