Translations:Release notes 0.19/268/en

commit 6d831627, commit f23187cd, commit dabf65cc and  commit 7251a90f
 * Part_Helix-dialog.png
 * Existing primitives can now be edited in a dialog that also shows the changes as live preview. To do this, click on the primitive in the model tree and the dialog opens.
 * Existing primitives can now be edited in a dialog that also shows the changes as live preview. To do this, click on the primitive in the model tree and the dialog opens.