Update git submodules
- Update extensions/TemplateData from branch 'REL1_39' to c7b14697d3b9a250e2fc239598535d23f20c6e65
- Localisation updates from https://translatewiki.net.
Change-Id: I90e5aff2bc31f1d4c17b5b6ecb99fd4cd45fdb0f
- Localisation updates from https://translatewiki.net.