FreeCAD 0.20.1 Build 1

What's new in this version:

Addon Manager fixes:
- Addon manager did not work on windows with special characters in username
- Fix for non-Github URLs
- Add other_files download for wiki macros
- Fix thread termination bug

Arch fixes:
- Invert opening symbol for simple door
- Fix getCutVolume
- Could not change type of profile after its addition

Core (App and Gui) fixes:
- Fix expressions assignment for FreeBSD
- Set missing angle in Rotation::inverse function
#5592: Respect symbolic links
- GuiPy: allow to call setupWithoutGUI more than once
- Fix crash in ViewProviderLink::currentDraggingPlacement()
- Pressing OK button in "Placement Panel" changed color of the Link object
- Python console: Fix a Latin1 <-> UTF-8 conversion problem

Draft fixes:
- Draft to sketch does not take placement into account
- Fix align working plane to DatumPlane
- Fix default fillmode
- DisplayStatusbarScaleWidget should be checked in preferences
- Join fails when there is a minor difference in coordinates due to rounding
- Fix setEdit
- Fix EditMode for hatch, facebinder and shapestring
- Fix Hatch task panel title
- Remove unnecessary DisplayStatusbar preference
- Fix handling of groups on move-copy and rotate-copy
- Fix Draft Edit AddPoint with BSpline
- Ctrl+Z dis not work in Draft_Wire

FEM fixes:
- Fix point filter initialization issue
- Fix wrong console outputs for fluid materials
- Fix material task dialog for fluids
- Check if solver executables exist
- Fix CalculiX multi-threading bug
- Fix solver console bugs
- Check if Gmsh, CalculiX and Mystran solver binaries exist
- Color bar for result pipelines and filters not updated in view
- Add missing info about transparency
- Fix regression that result pipeline missed some results
- set default selection mode to BoundBox for post objects
- Fix errors on missing material properties
- Add missing eigenfrequcy calculation for Elmer
- Use SoAnnotation to highlight result pipeline objects
- Use direct solving as default for stresses
- Allow to edit solver input files also for Elmer and Z88
- Fix selection issues with electrostatic constraint
- Fix pipeline recompute bug
- Fix another pipeline recompute bug
- Fix warp filter factor
- Fix selection issues with flow velocity constraint

Material improvements: :
- new material card for plain Aluminum
- new material cards for Copper and Invar

Mesh fix:
- 3mf created with FreeCAD cannot be loaded with PruseSlicer

OpenSCAD fix:
- Get rid of SCAD-Import error

Part fixes:
- Fix display "labelfillet" name for Chamfer and Fillet
- Fix GeomBSplineCurve::toBiArcs
- Rename preferences page to "Part/Part Design"
- Fix TopoShape.isInside() for faces
- Correction of decimal places on creation of primitives
- Fix KnotSequence for periodic BSpline surfaces

PartDesign fixes:
- Hole dialog fixes
- Hole initialization bugfix
- Fix ProfileBased::getSupportFace()
- Fix Pad/Pocket logic issue
- Add property enabling logic for pad/pocket
- Improve face selection for Pad/Pocket

Path fixes:
- LeadInOut dressup breaks simulator
- Fix wrong "Please delete and recreate the job" message
- Restore drilling op retract value to user supplied Retract Height
- Fix Type=Polar regression in PathArray
- Fix vcarve c++ exception
- Fix external thread issues

Sketcher fixes:
- "Toggle Construction Geometry Button" is not working in "Custom Workbenches"
- Fix "WhatsThis?" for Sketcher_CompConstrainRadDia

Spreadsheet fixes:
- Fix several memory leaks
- Crash if cell value ' is set

Stylesheet fixes:
- Remove whitespace and add "checked" icon style
- Group box lines were not correctly styled

TechDraw fixes:
- Fix Projection group view spacing
- Fix dimension update on change of Projection group scale
- Fix Dimension export to DXF
- Fix bitmap hatch
- Fix Image scaling
- Fix multiple open dialogs
- Fix bad edge in face finder
- Fix crash on body with no shape
- Fix symbol recompute and scale

Compilation:
- Prepend CMAKE_INSTALL_PREFIX if CMAKE_INSTALL_LIBDIR is not absolute
- Fix Conda test errors