2.8.1

[CSMS-2214] Change refresh button (#35)          * [CSMS-2214] Warming up. Setting up.     * [CSMS-2214] Add synchronize action     * [CSMS-1165] Text when profiles not found     * [CSMS-2497] Fixing callbacks     * [CSMS-2358] Check vendor existing     * [CSMS-2655] Setting external cron (#36)     * [CSMS-2655] Setting external cron     * [CSMS-2655] Unregister cron shedules     * [CSMS-2655] Fix disabling and enabling system cron     * [CSMS-2655] Fix SSL & Migration