Merge branch 'master' of https://github.com/born2b/Slic3r
Ported Slic3r::BridgeDetector to XS
Ported some minor methods to XS
Refactored ClipperUtils API for a more consistent arguments convention
Merge branch 'master' of https://github.com/born2b/Slic3r
Merge branch 'master' of https://github.com/alexrj/Slic3r