Update git submodules
- Update extensions/InputBox from branch 'REL1_39' to 867aac1eb9c91399710b465d7d56a64cb850678e
- Localisation updates from https://translatewiki.net.
Change-Id: Ie35a1a1e67076c463c8828e64847e929bf70c2d2
- Localisation updates from https://translatewiki.net.