Another snapshot has been sent from the workers of Minecraft! :D What has been added and fixed this time?

A new item has been added called the Barrier. The only way to obtain it is to do: /give @p barrier. When in your inventory, it looks like a red box with a slash through it, but when placed, it is an invisible block that you can't walk through.



Speaking of going through stuff, a new gamemode has been added: Spectator Mode

When using spectator mode, you can go through ANY blocks, and when trying to hit mobs, you can see their point of view.

Creeper's view:



Enderman's view:



And the trippiest one of all, spider's view:



Now some bug fixes :D

In "Fancy" graphics mode, items will spin again!



In "Fast" graphics mode, items will appear again!



Minecarts have changed a bit too; when a minecart passes over a powered activator rail, it will throw any entity or player riding it off.

If I've missed anything else, please tell me in the comments!

If you're excited for 1.8, please throw me your shiny blue rock :D