Ex Nihilo 2

Not a big update this time around, but it will go a long way towards making the maps completely playable.

• You can get all of the vanilla saplings by sifting the vanilla leaf blocks. (This is likely going to be replaced by a new mechanic in the future, but I wanted to add something to get players by for now)
• You can get cactus by killing creepers (must be done by a player, falling doesn't count).
• You can get sugarcane when fishing.
• You can get melon and pumpkin seeds by breaking grass.
• You can get rust while sifting gravel, which can then be smelted into iron.
• Sieve reward items appear a little further above the sieve now. This should make them act less derpy.
• Fixed an issue with the 'Moderate' Ex Nihilo map that caused ash to appear to not have a texture. You'll have to delete the template and regenerate it for the fix to work.
• Added the ore salt items to the game, but there is no way to get them and they have no use. You can spawn them in with NEI and look at them if you are curious. Feel free to send feedback on their design and textures if you want.