v0.4.1
- Fix bug when displaying Spline1D and ParametricSpline on Julia 1.0.
- Use gcc multiversioning in BinaryBuilder to get a GCC-version-specific libddierckx binary. This addresses problems where libddireckx was built against libgfortran4 (which is distributed with the official Julia 1.0 binaries, built with GCC 7), but users building Julia from source with GCC 8 had libgfortran5.