[Bf-python] Object.getEuler() vs Euler object methods

[Ken Hughes]

Pontus Lidman noticed that the Object API accesses angles using Euler 
objects, but that the angles themselves are in radians while Euler 
assumes they are in degrees.  This means that any Euler method used on 
object angles will probably give the wrong results.

This was discussed at length in the bug tracker:

http://projects.blender.org/tracker/?func=detail&atid=125&aid=3362&group_id=9

The question is what to do: should we start working on making the API 
consistently use only one representation for angles, and if so should it 
be radians or degrees, and how long will it take script writers to make 
changes?  I'm not proposing this for the 2.40 release, but something to 
work on shortly thereafter.

Another option is to change the Object API to not use Euler objects, and 
leave it up to the user to do the conversion if they want.  Maybe add an 
  optional parameter to the euler __init__ method which let the user 
give the angles in degrees.

Ken