Generating block metadata when placing about mc-erl

[clonejo]

this had btw already been done for torches

[dalbothek]

Just note that stairs (and many other blocks) don't have to face the block they are placed on like torches do. Use the direction the player looks instead.

[clonejo]

stairs are done.

Still remaining: levers, wall signs, pumpkins and jack-o-lanterns, slabs, redstone repeaters, pistons.

update: upside-down stairs done
update 2: chests, furnaces, dispensers and ladders done