[INTERNAL] made TransformationModel non-copyable, to prevent segfaults in derived classes that use pointers to models
[FEATURE,PARAM,TEST] added different extrapolation options for B-spline transformation
[FEATURE,PARAM,TEST] introduced 'global_linear' extrapolation option (replacing 'identity')
Merge branch 'develop' of https://github.com/OpenMS/OpenMS into bspline
Merge pull request #1079 from hendrikweisser/bspline

Linear extrapolation (and other options) for B-spline transformation