added a base class for ICA converters
Merge pull request #1474 from pickle27/develop

added a base class for ICA converters
fix doxygen error
Merge pull request #1475 from votjakovr/feature/gp_refactoring

Cleanup some evaluation classes
Cleaning up build directory: Moving cxx11_* temp stuff to subdirectory.
Merge pull request #1473 from tklein23/cmake_cxx11_temp_dirs

Get rid of empty temp directories cxx11_* in the cmake build dir.