Convert to coffee.

Signed-off-by: crynobone <crynobone@gmail.com>
Fixed bug on request.

Signed-off-by: crynobone <crynobone@gmail.com>
Update readme and finalize some requirement.

Signed-off-by: crynobone <crynobone@gmail.com>
Add header.

Signed-off-by: crynobone <crynobone@gmail.com>