Added scrollbar size to settings

  Added scrollbar size to settings
  Added tetsing for cursor keys to wxTextValidator
  Correcte misspelled colour in wxColourDialog
  Made print dialogs look nicer
  Made wxStatixBox transparent (in the middle) for mouse
    actions (very useful for DialogEd)
  Corrected colour setting in DialogEd not to set any colour
    when using standard colour
  Corretced unresponding scrollbar in DialogEd

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1179 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775