I found that I really enjoy this idea. more...

So I am getting deeper into c++ in order to make this game a better one,
the last final version is in master branch. I am tring to apply OO to
mine C++ code. I used to using java before...
bad behavier again...

I learned a lot about c++, and I tried to apply them to this game, and I
did it. :-)
by now, everything seems fine. In this commit, I clean the old project
file, and refactored almost everything. (because they were totally a
mess...) Now we have a background, a hero which has a EVIL weapon that
allways hurt himself, I tried my best to make everything flexible, and I
hope it is....  that all.
redesigned some classes

Conflicts:
	bkclass/Bullet.cpp
	bkclass/Bullet.h
	bkclass/BulletLayer.h
	bkclass/Cannon.cpp
	bkclass/Cannon.h
	bkclass/Constants.h
	bkclass/Enemy.cpp
	bkclass/Enemy.h
	bkclass/EnemyBulletLayer.cpp
	bkclass/EnemyBulletLayer.h
	bkclass/EnemyLayer.cpp
	bkclass/EnemyLayer.h
	bkclass/HeroBulletLayer.cpp
	bkclass/HeroBulletLayer.h