ALT_HOLD (take off and land)

**Details**: 
Take off and land  ALT_HOLD
GPS not connected
Altitude issues
antivibration platform
good IMUs
bad landing

**Commads**:
* Stabilization*:
 mavgraph.py 44.BIN "ATT.DesPitch" "ATT.Pitch" --flightmode=apm 
mavgraph.py 44.BIN "ATT.DesRoll" "ATT.Roll" --flightmode=apm

*IMU*: 
mavgraph.py 44.BIN "IMU.AccX" "IMU.AccY" "IMU.AccZ" --flightmode=apm

*Altitude measurements*: 
mavgraph.py 44.BIN "CTUN.BarAlt" "CTUN.Alt" "CTUN.DAlt" --flightmode=apm

*GPS *: 
mavgraph.py 44.BIN "GPS.Lat" "GPS.Lng" --flightmode=apm