updated the metadata.xml with information about the modpack that I released today

-improved the code of this mod

-fixed an unintended movement with delta attack

-added the music from the original game of the boss (can be disabled with mod config menu pure if you don't like it)
-the boss now acts a little faster
-increased the difficulty of the delta attack

-added a death animation to the boss

-improved the atomic ray and thundara attacks
-better graphics for the delta attack and magitek barrier

-fixed possible problems with the meteor call item

-changed a part of the code to avoid bugs and lag
-reworked the thundara attack

fixed the inferno item not dealing the player damage * 2

-fixed the item dealing damage to the player if he is on the middle of the portal
-item charges required to use decreased from 2 to 1