Fixes (2)

• 2019-10-22 #BUG-8003 (Maxim Kuznetsov)

  Fixed various security issues. #Core #GoSocial #ThemeTweaker #RESTAPI

• 2019-10-16 #BUG-7965 (Fedya Lavrentyev)

  Improved MariaDB version check before a 5.3->5.4 upgrade. Implemented additional checks. #Core