Program Function Key handlers now return 'break' consistently
to make sure a user key rebinding does not conflict with some Tk default.
Back to displaying full version number or Titlebar.
# character now used both to escape CMDSHELL and wildcard processing.
RHS of string options can now be blank -> leaves option as default value.
This eliminates the need for the "" construct for CMDSHELL processing.
Implemented Select Via Wildcard feature.