[Pythoncard-users] textfield, textEditor, findfiles tweaks

changed positionToXY in textfield component to handle tuple of length 2 or 3
  This is to deal with a change in wxPython that may change again in a
future version so I'm just being defensive. Actually if Robin changes this
again it might throw an exception in which case it will require a tweak
later.

updated findfiles to deal with the positionToXY issue above. double-clicking
on a result line would return the wrong result in some cases.

changed textEditor.pyw to show the filename in the title bar

ka