dabba: remove capture list command completely.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
rpc: add error code return message.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabbad: return error code on 'capture start' rpc.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
rpc: return error msg after 'capture stop' rpc.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabbad: return error code on 'capture stop' rpc.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
rpc: return error msg after 'capture get' rpc.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabbad: return error code on 'capture get' rpc.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabba: add indent in 'capture get' output.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>