• Re-add support for colored log levels with the 'colored' feature
  • This was initially implemented in fern 0.4.4 by @nihilus, but support was accidentally dropped in fern 0.5.0.
• Fix the ability to run tests on windows, and refactor integration tests for developer clarity
• Update documentation for clarity

Short list of changes in 0.5.0:

• Updated from log 0.3 to log 0.4. Both are interoperable, but using log 0.4 provides a much cleaner log interface for fern to use internally
• Removed fern::FernLog.
• Renamed fern::color::ColoredLogLevelConfig to ColoredLevelConfig
• Greatly simplified testing