Translations:Release notes 0.15/25/en

The Spreadsheet Workbench has been completely recoded. FreeCAD now possesses a state-of-the-art, robust, feature-rich spreadsheet editor. A couple of functionalities found in the previous version of this workbench have been removed, such as the property controllers, but this is a complex issue requiring more time to design properly. At the present time, however, the new spreadsheet already offer far better possibilities to gather data from your model.