v2.4.5

• fix htrie matching of non punycode (eg. unicode) idna hostnames
• slightly faster logging (update to mlog dependency)
• address a logging issue with missing url path output in "built outgoing request" debug log
• moderate improve performance of hostname rule processing (approx 12-30% in microbenchmarks)
• slight improvement in request path url processing (approx 2-4% in microbenchmarks)
• fix /debug/vars being enabled by default (#65) due to expvars import side effect