Bukkit

• v0.2.31 - Changed Nether Spawners to include skeletons, for the Wither Skeletons.
  
• v0.2.3 - Changed some hard coded probabilities regarding the nether, also added new command /usg reload
  
• v0.2.26 - Updated for many different block varieties. New tree types, new flowers, wool variety, Purpur, different 'stones' (granite etc..) to bring it up to speed with 1.9.2
  
• v0.2.1 - Changed teleport code to run a task instead of checking current system time. People with the delay lag hopefully will notice a difference.
  
• v0.2.0 - Fixed multiple items not spawning in chests.
  
• v0.1.91 - Changed 1 line of code to make sure its getting the correct world height variable from the config.
  
• v0.1.9 - If you use this generator while making a nether or end world now. It will pick blocks accordingly. See change log
  
• v0.1.81 - Changed max height of glass, if this option is true in the config, to keep players from suffocating when first teleporting in.
  
• v0.1.8 - Based on a request, I've added a true or false value to the config file that will allow you to generate glass in between the blocks instead of air.
  
• v0.1.7 - Added Chest configuration options to the config file. See Change Log Page.
  
• v0.1.6 - Added BlockGroups to config file. You can add/remove any block you wish to any group to get the desired world outcome.
  
• v0.1.5 - Cacti now can spawn on sand. Changed the way the plugin initialized the config so it doesnt use default values on reload automatically. More in change log page.
  
• v0.1.4hotfix - Corrected an error to impede the console from trying to use the home and sethome commands.
  
• v0.1.4 - Added commands and permissions, see change log page for more info. Also added cacti to chests.
  
• v0.1.3 - Added tree saplings, and spawner eggs to chests.
  
• v0.1.2 - Based on a request I added block probability to the configuration and wrote an extensive explanation on how to use it and a list of each block in each group.
  
• v0.1.1 - Re-uploaded because plugin.yml was excluded from the jar.
  
• v0.1.1 - Removed some possible items from chests.
  

Make sure all world heights are the same. I've left these option in the configuration file because i plan on fixing this at some point. If world heights are not equal you will get errors generating other worlds other than your normal world.

Putting too many chests in the world may cause the populator to crash. There is a lot of arithmetic/variables/random numbers that happen when populating chests, its fairly intensive.