To me it looks as if all that's missing is .desktop entries for libreoffice and the various applications.
This is easy to solve, and shouldn't be open for such a long time.
- bug#24341: No Libreoffice app is not shown in the GNOME a... Juanjo Marín
- bug#24341: libreoffice needs .desktop entries ng0
- bug#24341: fixed since commit 17e56dac1 Thomas Danckaert
