Better defaults for min values for some of the multicopters
matlab logging: Initial CSV example
Create system state entry in dataman - ATTN Anton

Create persistent system state id for data manager to store system state
that will persist across resets.
dataman: allow writing empty items with nullptr pointer to data
mavlink: waypoint manager fixes, mission saving on reboot
mavlink: retry timeout moved to define
Merge branch 'master' into dataman_state
introduce multi device support on uORB
Make sensors app multi-device aware
Make commander multi-device aware
Introduce enum / define for multiple devices
Introduce HMC5883 multi-device support
Introduce MPU6K multi-device uORB support
LSM303D: Add support for multi-uORB devices
L3GD20: Add support for multi uORB topics
MS5611: Add support for multi uORB devices
EKF estimator: Add support for multi uORB sensor topics
FW att control: Add support for multi uORB topics
mavlink: Add support for multi uORB sensor interface
Build and runtime fixes for matlab csv serial bridge