Started 4.3.5 development.
Added missing requirement in docprops plugin.
Changelog entry.
Merge branch 't/11717'
Reverted 2cf790ed.
Block default actions of undo/redo keystrokes only in wysiwyg mode.
Changelog entry.
Merge branch 't/11677'
Added changelog changes proposed by Anna.
Fixed and added entries to mailmap.
Reordered mailmap alphabetically.
Updated translations, added Tatar language.