- improve --noitem description (#456305)
    - add setHeight to Textbox class
    - fix fixedheight forms
    - free keymap in newtFinished()
    - fix memory leak in textbox
    - fix valgrind error in checkboxtree
    - don't crash when running empty form
    - don't crash or hang when form has no focusable elements
    - before checkboxtree drawing return first item in GetCurrent()
    - redraw textbox in SetText()
    - add setColor description to SnackScreen docstring (Greg Swift)
    - make sure Widget isn't used directly (Greg Swift) (#452920)
    - add Serbian translations (Miloš Komarčević)
    - add Balochi translation (Mostafa Daneshvar)