DCS 2.5.5.39003 Open Beta

Fixed engine sound that was broken in the latest update (real engine sound still WIP).
Fixed startup training mission. "VOR ON" step after startup will not pass without moving the NAV Volume selector in VOR-ILS-MB equipment.
Gear up and gear down commands added.
Gear emergency extension works now when using input command.
AoA indicator does not jump anymore from max to min and vice-versa when turning the knob with keyboard or joystick button.
Control stick can now be hidden using keyboard or joystick commands, not only click-spot.
"Ventilación Emergencia / Emergency Ventilation" depressurizes now cockpit.
Gear override button (crash button) has now a press and release function.