Translations:Release notes 0.17/101/en


 * Solver
 * Solver frame work was written from scratch during a Google Summer of Code project.
 * Support for FEM solver software ElmerFEM, https://www.csc.fi/web/elmer, was added.
 * Inside the solver frame work the analysis type can be chosen by an equation object (Elmer solver only, ATM.)
 * Basic support for FEM solver software Z88, https://en.z88.de/z88os/, was added.
 * CalculiX was ported to the solver frame work. The ccxtools solver object remains in FreeCAD FEM because it is very well tested and has extended pre checks.