Refactor Dispatcher::asset() method.

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

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

Signed-off-by: crynobone <crynobone@gmail.com>
Merge branch '2.1' into 2.2