v4.0.0

What’s Changed

🚀 Features and ✨ Enhancements

• Feature/#25 required instead of none allowed (#26) by @markusressel
• better error output
• custom logger for exceptions in ConfigEntry

Migration Guide:

• change all non_allowed constructor parameters to required and invert their value, f.ex. none_allowed=True becomes required=False and vice versa
• the special case for StringConfigEntry parsing "None" and other Strings to actual None values has been removed, if you relied on this feature you have to implement it yourself