Beta relese for 2.0.0

Changes:

• Added backup restoration system (Hurray!) which includes :
  • command to initiate restoration (/backup restore [version] [comment])
    • comment is optional and it is a comment that would be added to the backup of the old world
  • command to stop restoration (/backup killR)
  • command for listing available backups (/backup list)
  • config option to make a backup of the old world before deleting it
• Reordered config file
• Better logging system (Based on Cotton's ModLogger)

SHA1 sum of 2.0.0-A-1.16.1.jar:
b14c5565d9f014ffdb914e4339a7db7b146e8a81