Bug#706656: ITP: cura -- Controller for 3D printers

[Gregor Riepl]

I forgot one thing:
- libArcus carries the same version as the rest of the packages, but it 
actually uses a different versioning scheme. The shared library is named 
libArcus.so.1.0.0, with the SONAME = libArcus.so.2. This may or may not be 
correct. A bug report was filed upstream: https://github.com/Ultimaker/
libArcus/issues/43