add tags to the ticket valid attributes

Author: steved

spec/live/ticket_spec.rb

@@ -9,7 +9,8 @@ def valid_attributes
  :priority => "normal",
  :requester_id => user.id,
  :submitter_id => user.id,
- :collaborator_ids => [agent.id]
+ :collaborator_ids => [agent.id],
+ :tags => ["awesome", "blossom"]
  }
  end