Fixes incorrect dropItems instead of dropItem key in config.yml
Adds some missing dropper messages to config.yml
Adds proper migration keys for all known configuration options
Adds a modified version of Stargate's StargateYamlConfiguration to allow retaining comments during configuration migration.
Fixes the annoying "[]" is not a valid repairable item
Removes the use of data keys for the global configuration
Implements ignored salvage
Implements salvage-able items
Adds some TODOs
Implements salvage fail chance
Moves several methods to ItemHelper
Adds option for allowing extended salvage
Adds the classes necessary for the new scrapper
Partly implements some scrapper functionality
Restructures some classes to reduce code duplication
Moves some classes to make some classes easier to find
Adds a bunch of TODOs where things have an unfinished implementation
