Added default MIB-version : 4.20
Adding memory tracker
allowMissingPreview should always be true in Options.
Fixes for UndoRedoManager
Minor changes to VerticalGrid class.
WallView related components.
Change to how the issue overlay is rendered.
Overlay should now also be present on dual layout verticals.
VerticalRenderer without overlay.
- WallView stuff.
- File-url comparison fix (When deleting Export folders)