Previously, the word was highlighted red in case it was not found in the
dictionary. That color was repurposed as a general "invalid input" color
to nudge the player that something was wrong with the last input.
Accordingly, the field m_last_word_not_in_dictionary was renamed to
m_last_word_invalid
In the "inspiration" for this game, messages are displayed on top of the
game area in case an invalid guess is inputted. After a few seconds,
they disappear. In a similar fashion, a statusbar is created on the game
window and similar messages are outputted there.
We have a new, improved string type coming up in AK (OOM aware, no null
state), and while it's going to use UTF-8, the name UTF8String is a
mouthful - so let's free up the String name by renaming the existing
class.
Making the old one have an annoying name will hopefully also help with
quick adoption :^)
Previously guesses were not checked which allowed guesses
like 'aaaaa' to be entered.
Currently there's an option to set if a guess should be checked
against the dictionary and rejected if it doesn't exist there.
Additionally settings from Game menu have been moved to its own
entry - Settings.
