mv logger.cpp's content into logger.h && rm logger.cpp
mv config.cpp vec_funct.cpp str_funct.cpp into *.h
add cpp for test/ut
rm encoding.cpp/h
mv file_functs.cpp into .h
mv io_functs.cpp into .h
rename argv_functs -> ArgvContext
mv sort_functs.cpp to test
mv testdata to test
fix bug in ut
mv md5.cpp/h sort_functs.h others/
git change : rename cppcommon -> limon; add *.h -> *.hpp
test limon
modify README.md
rename limon limonp
rename limon limonp
modify R
modify README.md
merge dev