Based on 591ed239

Changes from master:
- Revert officecfg string changes.
- Instead, hide .uno:AutoSum in Calc for 6-0.

Change-Id: Ia4a4231acf2f15ebf58f2acd02b7fc0ab5a88072
Reviewed-on: https://gerrit.libreoffice.org/46970Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Heiko Tietze <tietze.heiko@gmail.com>
Tested-by: Heiko Tietze <tietze.heiko@gmail.com>