Workaround Clipper changing point coordinates while performing simplify_polygons(), thus causing a crash in Slic3r. #2306
Bugfix: Z depth issues in 3D preview on Linux. #2197
Fix rendering issue of slider controls on Linux
Fixed glitch in commit 9c93e52c8f313d4448006f06718a6dfdc5ec758a causing tests failures
Bugfix: choice fields were not populated correctly in object and part settings
Releasing 1.2.1
Merge branch 'master' of https://github.com/alexrj/Slic3r
Merge branch 'master' of https://github.com/born2b/Slic3r
Merge branch 'master' of https://github.com/alexrj/Slic3r