Update git submodules
- Update extensions/Interwiki from branch 'REL1_39' to ad82d47c741af12df2b64d6032133a93a814577c
- Localisation updates from https://translatewiki.net.
Change-Id: I37ecc59b970dcfc14471c2d50df833c7904ddf47
- Localisation updates from https://translatewiki.net.