* Rescued 3 buttons from OO.org 1.1.5
* add icons here and there
* deleted extra page in IMPRESS
* entry "3dEffects" in Index
* entry in Contents
Change-Id: Ia35000392d928750ebd95c64426ba1d1fa11f099
Reviewed-on: https://gerrit.libreoffice.org/c/help/+/96673
Tested-by: Jenkins
Reviewed-by: Olivier Hallot <olivier.hallot@libreoffice.org>