macaon_decode is working

common/include/util.hpp

common/src/Dict.cpp

common/src/util.cpp

decoder/src/Decoder.cpp

decoder/src/macaon_decode.cpp

reading_machine/include/Classifier.hpp

reading_machine/include/ReadingMachine.hpp

reading_machine/src/Classifier.cpp

reading_machine/src/ReadingMachine.cpp

trainer/src/macaon_train.cpp