* fix/cmtkaffinecompose: (32 commits)
  Add test.CMTKRegFromAmira
  More cleanup in Affine.R
  Merge ComposeAffineFromIGSParams.named into ComposeAffineFromIGSParams
  More work to handle versions for CMTK registrations
  OBS: Remove incomplete FindTorstenFromAffine()
  fix bug in names introduced in ReadIGSRegistration
  Teach IGSTypedStream functions to handle versions
  Test for CMTK legacy decomposition
  Add option to Decompose legacy CMTK registrations
  Check CMTK version and omit some tests when <=2.4.0
  Add tests including mirroring along x,y,z axes
  New round trip function starting (and finishing) with affine matrix
  Update direct tests of ComposeAffineFromIGSParams and DecomposeAffineToIGSParams
  minor code tidying in DecomposeAffineToIGSParams()
  Fix DecomposeAffineToIGSParams() - matches svn 5050
  Fix ComposeAffineFromIGSParams.named - matches svn r5050
  Use cmtk.dof2mat/mat2dof by default for tests
  Tidying up affine tests
  Add test for pure R Affine Decomposition
  Simple tests for cmtk.(mat2dof|dof2mat)
  ...