Revision history for Tk-JDialog

1.00    Date/time
        First version, released on an unsuspecting world.
1.01    Add Tk to prerequisites and add code to skip sample program test run 
        if AUTOMATED_TESTING is set.
1.1     2016/01/20
        Eliminate run-time warning messages when $ENV{DESKTOP_SESSION is not
        defined. - NOT RELEASED.
1.11    2016/01/20
        Eliminate run-time warning message when no -escape_button is defined.
