Bukkit

Added Ice to BO. Fixed some bugs.

1. You get stuck trying to pass through a gap between fence and nether fence, fence and glass, etc.

2. T Flip-Flops, and other advanced redstone circuits involving pistons do not work properly. To work around this, set blockOverride.pistons to false in the config file.

3. Looking up at redstone/diode shows no texture.

4. On modded blocks, the redstone texture cannot be seen connecting redstone on top of block to redstone below block. Redstone functions normally, however.