Initial commit
Merge https://github.com/daydreamer00/sjtu-m3

Conflicts:
	M3.cpp
	centroid.cpp
	hc_voter.h
	libsvm.cpp
	libsvm.h
	libsvm_parameter.h
	m3_parameter.cpp
	prior_divide.cpp
	svm_light.cpp
	svm_light.h
	svm_light_parameter.cpp
	util.h