Added cast to float in getAngleAroundRad calculation, because before it could happen that the function return NaN. #2351
Now used MathUtils.clamp instead of just a cast. (Saver way)
Merge remote-tracking branch 'libgdx/master'
Merge pull request #2364 from JonasDann/master

Added cast to float in getAngleAroundRad calculation, because before it ...