Update git submodules
- Update skins/Vector from branch 'REL1_35' to 506d9958b6a50d6cdff183b73fd509928335f405
- Localisation updates from https://translatewiki.net.
Change-Id: I411fda8978f07455ee54283ca5bc4535fd01d242
- Localisation updates from https://translatewiki.net.