Constructive comments on this program are welcome, 
send your messages to: Szekeres Istvan <szekeres@cyberspace.mht.bme.hu>.

Known bugs/TODO:

o  Colors are incorrect on 8 bit display, I don't know why.
  
o  4 Faces for the following situations:
     1. normal
     2. a mine is to be discovered
     3. lose game
     4. win game 
