New JWT features and changes (examples updated). Improvements on the Context User and Private Error features

TODO: Write the new e-book JWT section and the HISTORY entry of the chnages and  add a simple example on site docs

_examples/logging/request-logger/accesslog-simple/main.go

@@ -29,7 +29,10 @@ func makeAccessLog() *accesslog.AccessLog {
 	ac.PanicLog = accesslog.LogHandler
 
 	// Set Custom Formatter:
-	ac.SetFormatter(&accesslog.JSON{})
+	ac.SetFormatter(&accesslog.JSON{
+		Indent:    "  ",
+		HumanTime: true,
+	})
 	// ac.SetFormatter(&accesslog.CSV{})
 	// ac.SetFormatter(&accesslog.Template{Text: "{{.Code}}"})