added doxygen comments to tw-opts.h
added doxygen comments to tw-opts.h
carothersc/ROSS,laprej/ROSS-CXX,JohnPJenkins/ROSS,laprej/ROSS-CXX,carothersc/ROSS,JohnPJenkins/ROSS,carothersc/ROSS,JohnPJenkins/ROSS,laprej/ROSS-CXX