Cubes!

I added cubes to worldedit. As well as a helpful command, platfrom. This feature have been both tested farelly well in only bukkit. I add a new configuration feild for cubes because going off MaxRadius didn't seem to make sense. Also adding the raise flag for pyrmids. Note this commits might not look right because I kinda suck at using git but I am getting better. 
This code block shoud look like the following:
````java
for (int x = 0; x <= length; ++x) {
    for (int y = 0; y <= height; ++y) {
        for (int z = 0; z <= width; ++z) {
            if ((filled || ( x % length == 0 || y % height == 0 || z % width == 0)) && setBlock(pos.add(x,y,z), block)) {
                ++affected;
            }
        }
    }
}
````