logging

Sep 6, 2018

Changes in this version

+ func Debug(f string, a ...interface{})

+ func Error(f string, a ...interface{})

+ func Info(f string, a ...interface{})

+ func SetLogger(l Logger)

+ func Warn(f string, a ...interface{})

+ type Logger interface

+ Debug func(format string, args ...interface{})

+ Error func(format string, args ...interface{})

+ Info func(format string, args ...interface{})

+ Warn func(format string, args ...interface{})