Update git submodules
- Update extensions/CiteThisPage from branch 'REL1_39' to 9b059f833c0dc2609e705b1b54ffe073466491ef
- Localisation updates from https://translatewiki.net.
Change-Id: I4fd0ad2d93906cb16bc8301d38a95b2e5f96166b
- Localisation updates from https://translatewiki.net.