trema/trema — pull request #308 by y-higuchi (2013-08-01 02:29:31+00:00)
Title: Add :transaction_id as an option parameter of Controller#send_flow_mod_{add,delete,modify}

Current Ruby Controller allows OpenFlow messages such as BarrierRequest to be sent with user supplied transaction_ids, but it is not possible to specify transaction_id when sending FlowMod messages using
`Controller#send_flow_mod_{add,delete,modify}` methods.

This patch adds `:transaction_id` to the `options` hash to let user specify transaction_id
when using `Controller#send_flow_mod_{add,delete,modify}` methods.