Lost git up to here.
Changed shimmer_pub to accel_gyro_mag and added some test functions that
will move to a new node.
Created a python node that saves the calibration data stored on the shimmer to
a YAML file.
Starting to create a calibration package for the Shimmer.
Calibration program works. Now tilt compensated heading.
Many updates towards heading (not tilt compensated).
Heading in radians.
Calibrated heading.
Trying to get names and namespaces correctly.
More names.
More naming.
Print ack data entering Bluetooth socket. Change quat to heading.
Put the launch file's parameters into the shimmer namespace and added an
exponential moving average to the heading output.
Created a node to compute the heading from the calibrated magnetic data offline.
Renaming launch file to more clearly capture its purpose.
Created new launch file, which can load the calibrate data node into a specific
namespace.
Made subscription relative.
Merge branch 'master' of github.com:RafBerkvens/shimmer