Update git submodules
- Update extensions/InputBox from branch 'REL1_39' to 0a550dc01d4874ab25455724599b5ad14e258589
- Localisation updates from https://translatewiki.net.
Change-Id: I2ef3a83b28e883bf123f9b8e11ce9f99e533b290
- Localisation updates from https://translatewiki.net.