KBI Enriched Gravel

-Enriched Gravel will only drop resources when broken by a player
-The Sifter will only drop 2 resources max, instead of 3. This is related to above
-Fix for possible "ghost" items when mining Enriched Gravel
-If a newly-added config option is set to true (it is by default), you can craft resources back into chunks or nuggets
-Breaking Enriched Gravel drops experience orbs! You get less XP with a sifter than by mining
-Redstone chunks and sulfur/saltpeter piles are interchangeable with GregTech small dusts via OreDictionary

-Fixed dropping Platinum nuggets when it should've dropped Nickel (wrong metadata by 1)
-Added "easy Lapis" option, enabled by default, that changes recipe from 3x3 lapis chunks = 1 lapis dye to 2x2 lapis chunks = 2 lapis dye
-Added many configuration options to disable potentially overpowered, unusable, or otherwise unwanted drops
-Added gunpowder recipe, with 4 sulfur piles, 4 saltpeter piles, and 1 coal

-Released Mod
-Contains 8 types of Enriched Gravel, of varying quality
-Will drop chunks of more valuable materials
-Appears identical to normal gravel
--2 disabled chunks, clay (removed in favor of vanilla clay balls) and redrock (couldn't get the recipe working, EBXL or BoP)
-Contains Gravel Sifter item, crafted with 6 sticks, 3 string, and has 64 uses
--Right-click on regular Gravel to convert to Flint, right-click on Enriched Gravel to get up to 3 times as many bonus drops

Caveats

All types of enriched gravel appear as "Slightly enriched" with NEI's block identification thingy, and with the Pick Block feature. Consider this an exploit prevention.