Major changes

Includes all the space invader source code to use on the Spartan 6 FPGA
with the microblaze controller. Also is custome GPIO for a ps2 keyboard
that can interface directly with the board.
Merge branch 'master' of github.com:zaphinath/SpaceInvaders

Conflicts:
	hello_world_0/Debug/hello_world_0.elf
	hello_world_0/Debug/hello_world_0.elf.size
	hello_world_0/Debug/src/gameFunctions.o
	hello_world_0/Debug/src/globals.o
	hello_world_0/Debug/src/platform.o
	hello_world_0/Debug/src/vdmaTest.o
	hello_world_0/src/gameFunctions.c
	hello_world_0/src/vdmaTest.c
	space_invaders_7/Debug/src/aliens.o
	space_invaders_7/Debug/src/banner.o
	space_invaders_7/Debug/src/bullets.o
	space_invaders_7/Debug/src/bunkers.o
	space_invaders_7/Debug/src/spaceShip.o
	space_invaders_7/Debug/src/subdir.mk
	space_invaders_7/Debug/src/tank.o
	space_invaders_7/src/globals.c
	space_invaders_7/src/globals.h