Updated the INSTALL file.
Victory method created at the board.
Minor changes
Partial fix for issue #2 where boarder squares would look bigger. Still need to fix fractional portion loss when dividing integers
Merge pull request #5 from athos-ribeiro/devel

Partial fix for issue #2
Now th game ends when all the colors are the same.
Added comments to the recently added code.
Conflicts solved
merge commit
Conflicts solved.
Goes to 4x4 when you finish 3x3.
Included the gui class to write text.