Fix to axonometric projection for objects not centred at y = 0
Fixed overwriting of axo view when ortho views changed.
Correctly enables/disables axonometric tab when axonometric view added/removed.
Correctly identify standard template files
Added manual scaling to axonometric view
Arch: added structural roles to Ifc import
Arch: added alternative load mode for IFC files for benchmarking
Arch: Structural nodes - closes #1313
Add unti support to Sketcher
Mouse wheel handling in InputField
fix negative value cascading in unti schemas
fix QString header in Unit
Try to fix std::abs() error...
Fix another one....
next gcc fix
Imperial Sketcher grid in Dialog
+ Fix build failure with gcc
Part Dimension: alterations to existing files

    Not sure what is happening with View3dInventorViewer.h.
    The only REAL change, beyond the addition of dim functions, is
    the removal of the member arrowrotation. It wasn't referenced anywhere.
Part Dimension: new implementation files
Part Dimension: new icons