Using const methods in class

[yaxn]

Hi, thanks for exellent library!
I want to know why some methods such as
UnscentedKalmanFilterBase::computeSigmaPointMeasurements()
don't have the const keyword? These methods dont't change the content of classes

[mherb]

As far as I can see right now there is no particular reason, just forgot to add it (likely after some refactoring).
Thank you for reporting this, will be fixed in some future version (or feel free to submit a PR if you like)

[yaxn]

#28 I made the necessary changes