Translations:Release notes 0.19/56/en

{| cellpadding=5 Forum discussion, pull request #2267; Analysis of reinforced concrete with FEM (tutorial).
 * Femconcrete_Wall_3D_rx_PSS.png
 * After half a year in development and testing the "femconcrete" branch was added to the FEM Workbench. This provides tools to estimate the level of reinforcement required in a concrete structure to prevent brittle failure under tension or shear. In essence, it is a post processing routine for the CalculiX solver, which calculates the principal tensile stresses in the concrete from an elastic analysis and uses those to determine the minimum reinforcement in the three coordinate directions required to prevent failure.