Pretty much rewrote the config system, again.
- Rewrote a lot of the config system, as well as the config GUI system.
- Still some bugs that need ironed out in the config GUI, like List
  handling.
- Bumped jTOML version to 1.0.1.
- I found out that TomlConfig was now jTOML independent, so I renamed it
  to ConfigImpl. You should use the Config interface when using the
config system, vs the old TomlConfig.