Update Quaterion class to reflect suggesstions in #38
Update Quaterion class to reflect suggesstions in #38

Quaterion.roll, ~.pitch and ~.yaw are  now calculated from the formulas in Thalmic Lab's hello-myo example.
Add Quaterion.euler and make Quaternion.rpy a synonym of it.
NiklasRosenstein/myo-python,NiklasRosenstein/myo-python