Update git submodules
- Update skins/Vector from branch 'REL1_40' to 2686e563ddf66ae87abec0855e1ca7cb0700a0f2
- Localisation updates from https://translatewiki.net.
Change-Id: I1cedb80e0bf4363a8cf4d431d5e9db283f3249e5
- Localisation updates from https://translatewiki.net.