Update sessions/sessiondb/badger to its latest version and SessionController is able to initialize itself if session manager is not provided by the caller-dev.

Changes:

Update the badger database using transactions, as supported from yesterday via: 06242925c2

Add a custom `OnActivate` via mvc/activator/activate_listener.go, this can be used to perform any custom actions when the app registers the supported Controllers. See mvc/session_controller.go for the excellent use case.

errors.Reporter.AddErr returns true if the error is added to the stack, otherwise false


Former-commit-id: c896a2d186a4315643f3c5fdb4325f7ee48a9e0a

core/router/api_builder.go

@@ -545,12 +545,6 @@ func (api *APIBuilder) Controller(relativePath string, controller activator.Base
 		api.reporter.Add("%v for path: '%s'", err, relativePath)
 	}
 
-	if cInit, ok := controller.(interface {
-		Init(activator.RegisterFunc)
-	}); ok {
-		cInit.Init(registerFunc)
-	}
-
 	return
 }