Change mode -> Stabilize - ALT_HOLD

**Details**:
GPS OK
Altitude measurements unstable
Change mode - Stabilize - ALT_HOLD
stabilization issues

**Commads**:
*Stabilization problems*:
mavgraph.py 11.BIN "ATT.DesPitch" "ATT.Pitch" --flightmode=apm
mavgraph.py 11.BIN "ATT.DesRoll" "ATT.Roll" --flightmode=apm

*GPS*
mavgraph.py 11.BIN "GPS.Lat" "GPS.Lng" --flightmode=apm

*Altitude measurements unstable*
mavgraph.py 11.BIN "CTUN.BarAlt" "CTUN.Alt" "CTUN.DAlt" --flightmode=apm