Added blocks, fixed wooden slab
1.8/14w08a minecraft.yml update

Added all missing items up to snapshot 14w08a, corrected all id strings to minecraft internal values, and did some cleanup. Requires updated terrain.png and materials.py to function.
Update to allow greater than 16x16 in terrain.png

Changed the array to use 16bit instead of 8.
Merge pull request #153
Missing blocks are pink again
Merge pull request #150
pocket.yaml: Fix indent in #32 and #253, auto-cleanup