Group #2 - Make assigned files pass compile test

[pngwen]

./include/keys.h
./keys.c
./include/main.h
./main.c
./include/presents.h
./presents.c
./include/demo.h
./demo.c
./include/version.h
./include/bonus.h
./bonus.c
./include/ball.h
./ball.c
./include/blocks.h
./blocks.c
./include/eyedude.h
./eyedude.c
./include/gun.h
./gun.c
./include/paddle.h
./paddle.c