Update everything to use that instead of 0x00 and 0xff.  Should only impact
the use of the close window control in Windows, X, and macOS.

needed in these cases.

This fixes the loading CTRL-A codes from *.msg files reported by Marius.

If the file uses a known extension, do not pass through all the parsers.

Reported by Ragnarok.

We'll need to fix this in ciolib.

memory leak in the block copy function.

gracefully on some platforms.

Instead of prompting for a char, display the ASCII table.

no longer extend the line.

Mouse drawing still not functional.

Properly save 80-column drawings... possibly warn first?
        Best method (using movement codes) is as follows:
                At Start of 80-column line:
                        1) Move down one line (Using LF - force scroll if it will happen)
                        2) Move up one line (back to original position)
                        3) Save position
                At End of 80-column line:
                        1) Restore position
                        2) Move down one line using CR/LF to ensure a proper end of line
                On last line, do not do special start/end unless the last line is 80 columns.
        Second best method (for types without movement):
                At end of 80-column line, instead of \r\n, use <space><backspace>
                        - This method will not work correctly for non 80-column terminals
                        - Can result in overly long lines... breaking things which use a
                          fixed-length line buffer while reading input files (ex: ddplus doors)

Support loading, editing, and ANSI-selecting console fonts

mouse button problem as well as other ALT weirdness.

ESC key overloading goes on the list of top stupid things in the MysticDraw
design.

Separate attribues into separate attrs.h for easier modification.

Stricter error checking in fontutil.