v2.5.5

• fixed reCAPTCHA-validation (moved after DDoS check) (@REJack)
• some little fixes with ddos_protection & reCAPTCHA (@REJack)
  • fixed timestamp where in reset_login_attempts(), get_login_attempts() & update_login_attempts()
  • fixed login() removed cookie/session-userdata for reCAPTCHA (if reCAPTCHA needed)
  • fixed login() moved update_login_attempts() before test email/name & password
  • fixed generate_recaptcha_field()