Java Edition 13w38c

13w38c was released to fix some of the crashes of the 13w38a and 13w38b snapshots.

Changes

 * Removed Air as an item (not obtainable with /give, like most of the technical blocks as of 13w37a).

Fixes
7 bugs fixed
 * – Silk Touch, pre-lit Redstone Lamps
 * – Hopper: java.lang.NullPointerException
 * – Hopper: java.lang.NullPointerException
 * – Killing mobs sometimes drop "tile.air.name"
 * – Hopper: java.lang.NullPointerException
 * – Nether entering crash.
 * – Hopper: java.lang.NullPointerException