some redstone fixes (again); restructured a bit: computer, buffer (screen) and keyboard now hold their own node, which for the normal blocks is just re-used as that te's node, but this way they can be directly re-used in robots which have to have multiple nodes in one te; more gui stuff for robots; moved gameregistry stuff out of individual classes into the registry singletons; fixed guis being opened twice; mostly got "built-in" components for robot working (it's basically like a case with a built-in screen, fixed gpu and ram, for now)
40 files changed
