Changed template parameter for Kernels from Representer to PointType.
removed superfluous typename keyword
Merge pull request #24 from marcelluethi/kernels_templated_over_pointtype

Kernel template type
Merge branch 'master' into preparations_release_0.9

Conflicts:
	Examples/ITK/buildGaussianProcessDeformationModel.cpp
	Examples/ITK/lowRankGaussianProcessImageToImageRegistration.cpp
	Examples/ITK/simpleGaussianProcessImageToImageRegistration.cpp
	Examples/VTK/BuildGaussianProcessShapeModelExample.cxx
	statismo/Kernels.h
	statismo/LowRankGPModelBuilder.h
	statismo_ITK/itkLowRankGPModelBuilder.h