addendum to commit da6b9d1be443999028f021ff81b4cf128a4eaaa2
- better employee name and image for default employee in data (xml-id: hr.employee_root)
- in demo data hr.employee_fp renamed to hr.employee_root to not have 2 employees linked to the root user
- renamed all occurences of employee_fp to employee_root
- added encoding to xml files
- replace search_read() with search() for _search_absent_employee()
- fixed setting first date of current month as default value for wizards
- reduce calls to <dict>.get()