Add debug message.
End transaction immediately when no switch present.
Add test for dispatch to all switch but no switch exist.
Keep command line entry list order.
Refactor .feature
* rename nw_dsl.conf -> network.conf
* Remove Scenario Outline template from Ruby code.
tream switch_manager special in switch daemon.
Merge pull request #297 from y-higuchi/switchd_branching

Refactor switch event forwarding interface