Relaxed the Forge version requirement
 * No need for 1187 specifically
Fixed Natura crops not dropping seeds when fully grown
 * This was presumed to be an unintentional bug in 1.6.4. Natura crops now behave exactly as all other crops
Removed the unused config gui files
 * No reason to keep the files around; that's what version control is for
Added config option for stacksize of HarvestCraft chest loot