Less luck in the enchantment table

Replace most of the luck aspect of enchanting with the influence of environmental factors such as:

• Weather
• Time of day
• Moon phase
• Biome
• Nearby valuable blocks (diamond, lapis, gold, etc)
• Enchanted books in nearby chiseled bookshelves

Each of these could influence which enchantments are in the pool, and how common they are. I suggest that each of the factors affects a few different enchantments. 

This does not solve all of the issues with enchanting, but I strongly believe that adding subtleties such as this will make the system more engaging and less tedious.