Fix random crashes on 32-bit. Thank you Valgrind
Add Module::Build::WithXSpp to prerequisites. #1640
Draw more detailed thumbnails in plater and turn cursor to hand also when moving inside holes (otherwise objects with thin walls would not be easy to select)
Incomplete work for refactoring regions and flows
Parse options from AMF metadata
More incomplete work
Split PrintConfig into PrintObjectConfig and PrintRegionConfig
More work here and there
More work
Rename some admesh functions to preserve compatibility with oiriginal admesh #1525
Merge pull request #1665 from hroncok/admesh

Rename some admesh functions to preserve compatibility with oiriginal admesh #1525
Satisfy test suite and CLI
Refactoring: new Slic3r::Print::Simple class for non-interactive slicing (used in CLI and Quick Slice)
Remove scale, rotate, duplicate, duplicate_grid from config (but leave them in CLI)
Bugfix: overflow causing full object facets reversal when STL file has large coordinates. #1666
Adapt plater to the new split config
Moved first_layer_extrusion_width to PrintConfig
Some initial work for refactoring Print->extruders
More incomplete work for Flow/Extruder refactoring
More work for refactoring Flow/Extruder