Door Interface Program History File:

12/14/92        v1.60, key file introduction
                       file read/write restructuring.
01/20/93	v1.62, minor restructing
                       new documentation.
01/26/93        v1.63, new sysop info line
                       minor color display changes
                       menu subroutine restructuring.
10/26/93        v1.71  many, many, many changes and bug fixes...
                       the code has been ported to the Lattice C
                       much object oriented type restructuring
                       where possible, the code is ANSI compliant
                       modem loop bug has been fixed
                       ANSI color bug has been fixed
                       user idle time-out has been implemented
                         (hard coded to 3 minutes)
                       LOG file has been reformatted
                         (still not satisfied though)
                       time routines have been made ANSI compliant
                       text file display has been reworked
                       temporary fix to problem with cursor showing
                         in Maintenance program
                       fixed bugs introduced in code porting!