Update git submodules
- Update BlueSpiceCountThings from branch 'master' to 31b7f9cdd1f86a4644e396ec353900c4b5e9dc3c
- Localisation updates from https://translatewiki.net.
Change-Id: I9764db556ad1a44663e90e838fbdb867018d6b39
- Localisation updates from https://translatewiki.net.