#82 ZMatrix never renders last character of Character Set

[Alex Turner]

If you create a Character Set, ZMatrix will not render
the last character in the set when drawing the screen.
For example, if your character set is:

1, 2, 3, 4

...(in a font you can read so you can verify it), only 1, 2
and 3 show up. If you have:

1, 2, 3, 4, 5

...only 1, 2, 3, and 4 show up, and so on.

The last character in the default Character Set is D,
which translates to an asterisk-looking thing in the
Matrix Code Font. Obviously it's much harder to verify
when there are 40 characters in the set, but I also don't
think I've ever seen that asterisk on the screen with the
default set.