remove Dem3Dof form Yade (also eudoxos module, mostly based on Dem3Dof)
- remove Dem3Dof from documentation
remove eudoxos from build system (+ remove from VTKRecorder, that was left behind)
remove Dem3Dof from a docstring
remove Dem3Dof from alias
various fixes and improvements in checkTests
- increase verbosity of DEM-PFV checkTest