Merge branch 'sec08'
Merge branch 'sec08'
Merge branch 'sec08'
Merge branch 'sec08'
add lyrics_test
add underscore_map_test instead of collection
rm collection.js
add construct_test
Merge branch 'sec02_test'
add underscore_data_oriented_test
rm dataOriended
Merge branch 'sec02_test'
add redudeRight_test
add tableLikeData_test
Merge branch 'sec02_test'
add mapcat_test
add doubleAll_test
Merge branch 'sec02_test'
add complement and its test
add underscore_applicative_test