enable undo in remove block, bug #3509368
Merge branch 'master' of github.com:LibreCAD/LibreCAD
Detect KDE for use native or qt filedialog
correct disable ttf2lff if not have freetype in win
filters: do not save undone blocks
crash saving opened spline inR12
force write file if select save as
correct mesages in polyline del
speed x2000 loading big polylines from dxf
positive radius in mirroring blocks, bug#3601931
correct delete in openedfiles, bug#3601945
Bug: do not save undone entities in block definition
bug: saving image name in UTF8
segfault...some DXF, crash dim text horizontal #3602446
asciifile added connect points option
ascii point added column point format
plugin correct setLayer if exist
printpreview: cleanup option widget logic, bug#3601729
dimlinear: option widget logic, bug#3602870
entities linked to multiple layers, bug#3602152