Added logging #18, set Dockerfile to Go 1.16.5, minor changes

internal/webserver/api/Api.go

@@ -120,9 +120,7 @@ func isValidKey(key string, modifyTime bool) bool {
 		return false
 	}
 	settings := configuration.GetServerSettings()
-	defer func() {
-		configuration.Release()
-	}()
+	defer configuration.Release()
 	savedKey, ok := settings.ApiKeys[key]
 	if ok && savedKey.Id != "" {
 		if modifyTime {

internal/webserver/sessionmanager/SessionManager.go

@@ -24,7 +24,7 @@ func IsValidSession(w http.ResponseWriter, r *http.Request) bool {
 		sessionString := cookie.Value
 		if sessionString != "" {
 			settings := configuration.GetServerSettings()
-			defer func() { configuration.ReleaseAndSave() }()
+			defer configuration.ReleaseAndSave()
 			_, ok := (settings.Sessions)[sessionString]
 			if ok {
 				return useSession(w, sessionString, &settings.Sessions)
@@ -56,7 +56,7 @@ func CreateSession(w http.ResponseWriter, sessions *map[string]models.Session) {
 	if sessions == nil {
 		settings := configuration.GetServerSettings()
 		sessions = &settings.Sessions
-		defer func() { configuration.ReleaseAndSave() }()
+		defer configuration.ReleaseAndSave()
 	}
 	sessionString := helper.GenerateRandomString(60)
 	(*sessions)[sessionString] = models.Session{