Merged + Fixed unused return value error

cmake/psrdada.cmake

psrdada_cpp/CMakeLists.txt

psrdada_cpp/dada_junk_source.hpp

psrdada_cpp/detail/file_input_stream.cpp

psrdada_cpp/file_input_stream.hpp

psrdada_cpp/meerkat/tuse/CMakeLists.txt

psrdada_cpp/meerkat/tuse/src/dada_dbevent.cpp

psrdada_cpp/meerkat/tuse/src/transpose_to_file_cli.cpp

psrdada_cpp/meerkat/tuse/src/transpose_to_null_cli.cpp

psrdada_cpp/meerkat/tuse/test/TransposeTest.h

psrdada_cpp/meerkat/tuse/test/src/TransposeTest.cpp

psrdada_cpp/meerkat/tuse/transpose_to_dada.hpp

psrdada_cpp/src/file_to_dada_cli.cpp

psrdada_cpp/src/sigprocheader.cpp