Added all the new 1.9-pre3 blocks:

- The enchantment table has not book yet!
- The brewing stand is the 2d texture pasted. TODO.
- The cauldron works perfect.
- The air portal draw som random dots resembling stars, is not marevellous, but does the job.
- Air portal frame is rendered without problem.

overviewer_core/chunk.py

@@ -130,7 +130,8 @@ transparent_blocks = set([ 0,  6,  8,  9, 18, 20, 26, 27, 28, 29, 30, 31, 32, 33
                           34, 37, 38, 39, 40, 44, 50, 51, 52, 53, 55, 59, 63, 64,
                           65, 66, 67, 68, 69, 70, 71, 72, 74, 75, 76, 77, 78, 79,
                           81, 83, 85, 90, 92, 93, 94, 96, 101, 102, 104, 105,
-                          106, 107, 108, 109, 111, 113, 114, 115])
+                          106, 107, 108, 109, 111, 113, 114, 115, 116, 117, 118,
+                          119, 120])
 
 # This set holds block ids that are solid blocks
 solid_blocks = set([1, 2, 3, 4, 5, 7, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22,