change project structure

add across nodes ip limit
add user ip recorder
del config file watch

conf/log.go

@@ -0,0 +1,15 @@
+package conf
+
+type LogConfig struct {
+	Level      string `mapstructure:"Level"`
+	AccessPath string `mapstructure:"AccessPath"`
+	ErrorPath  string `mapstructure:"ErrorPath"`
+}
+
+func NewLogConfig() *LogConfig {
+	return &LogConfig{
+		Level:      "none",
+		AccessPath: "",
+		ErrorPath:  "",
+	}
+}