Removed deprecated / removed API.
Merge branch 'master' into matej/draw-view-global-undo-manager
Merge branch 'master' into matej/draw-view-global-undo-manager
Merge branch 'master' into matej/draw-view-global-undo-manager
Merge pull request #31 from PSPDFKit/matej/draw-view-global-undo-manager

Draw view undo manager fixes.