Update git submodules
- Update BlueSpiceCategoryManager from branch 'master' to d6ef3738c3bb103b6599c56c50ad10189a71a901
- Localisation updates from https://translatewiki.net.
Change-Id: I96367be2cd1b57e71b1f938c8a70b7849380701a
- Localisation updates from https://translatewiki.net.