See description

-Added new background (one that is "tiled")
-Replaced old Citrus Engine library with new one (after discovering that
it was updated)
-Did away with the up/down animation and just stuck with the left/right
walking for both left/right movement and up/down movement (like in the
original plan)
-Did away with the usage of the Bomb (since the plan is to NOT have
"gravity" and have everything be sort of a weird side/birds-eye view)
-Fixed an issue where the views of weapon ammo disappear after firing
multiple shots at once
Deleted the unneeded files

I forgot to delete these in the last commit