fixed journal read from nbtlist

getTagList(name, NBTBase type)
Gets the NBTTagList object with the given name. Args: name, NBTBase type

The nbt base type refered to here is the types of tags found in the list, not the type of tag you are looking in.
Changed ghost block material type to snow

snow blocks are allowed to be replaced, this should fix #55
Changed ghost block material back to iron

Still buggy with snow. need a better fix
Merge pull request #61 from RenateStrind/1.7-update

fixed journal read from nbtlist