More bug fixes and a small fix to make the plugin compatible for 1.13 and below
Finally got rid of that stupid cost type startvalue value whatever that was and now it's just an equation you can write.
Costs will automatically be converted into their respective cost types from 1.9r-8 to 1.9r-9.

1.8 compatibility well I don't really like the idea considering the version is so ancient but I'll try making it.

No extra enchants but some enchants will be broken when migrating versions, since all tick options are converted into seconds, but I haven't made a script to update between versions that.