MCUpdate

Minecraft Beta 1.3
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 * Implemented a new lighting engine with the help of MrMessiahs (can be turned off)
 * Changed the options around, added a new "Graphics options" button
 * Added beds. If all players in a map sleeps in a bed during night, the game immediately skips until morning
 * Added three new half-size blocks
 * Added Delay/Repeater redstone dust blocks
 * Added whitelisting to the server. To use, enter "whitelist " where cmd is "on", "off",