add new song and coding style

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
rename man js and update jquery version to 2.1.1

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
update jshint

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
fixed jshint error.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>