Add support for multiple remote for openvpn.

On the configuration someone can choose either tcp, or udp, or both, on the configuration we use remote-random to shuffle all this into some randomness

app/models/ability.rb

@@ -20,6 +20,7 @@ class Ability
         can :create, Subscription
         can :index, Service
         can [:create, :update, :show], RadioService
+        can [:create, :update, :show], FtthService
         can [:create, :show], DslService
         can :manage, ServiceMac
         can [:read, :preview], BaseInvoice