Everything Gives XP

Added Balancing changes:

• Bonemealing crops or ground only gives xp 1/10 times
• Crafting now gives more xp the more valuable the crafted item is
• Crafting common items (items with white names) will only give xp 1/6 times
• Smelting gives 1 extra xp for 1/4 items smelted instead of always
• Fixed bug where you could sleep over and over to get xp