Update git submodules
- Update skins/Vector from branch 'REL1_39' to 01a81d0733f2e16b5b86031d47970750bdf3458a
- Localisation updates from https://translatewiki.net.
Change-Id: I336f2932cb730e1bdfaa44cc8e1e8133925859c7
- Localisation updates from https://translatewiki.net.