remove generate css files.

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

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

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
update grunt file for build production.

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

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

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