Clojurians Log v2

Instrumenting all core specs can be a bit performance heavy, even in development. I wonder if this feature is something people want from speculative: select only the functions you want better error messages from and ignore the rest, even when calling (stest/instrument) (which people tend to in the REPL). https://gist.github.com/borkdude/09553f481975202c8677cae3ecc63694