- Adds `threshold(string)` for easier level setting.
- Adds `levels()` to make it easy to test if a user-defined string is good.
- Move the log levels section up in the readme.
- fix: fastest scope matching,
- feat: try to allow the compiler to optimize out as many conditional statements as possible,
which allow to use clutchlog for progress-only messages in Release mode.
- feat: build_all.sh test script,
- fix: typo in macro declarations in builds without clutchlog,
- update the README accordingly.