Godeps: upgrade github.com/huin/goupnp to 90f71cb5

Godeps/Godeps.json

Godeps/_workspace/src/github.com/huin/goupnp/.gitignore

Godeps/_workspace/src/github.com/huin/goupnp/README.md

...goupnp/cmd/example_ssdp_registry/example_ssdp_registry.go

Godeps/_workspace/src/github.com/huin/goupnp/dcps/av1/av1.go

...com/huin/goupnp/dcps/internetgateway1/internetgateway1.go

...com/huin/goupnp/dcps/internetgateway2/internetgateway2.go

...kspace/src/github.com/huin/goupnp/example/example_test.go

...kspace/src/github.com/huin/goupnp/gotasks/specgen_task.go

Godeps/_workspace/src/github.com/huin/goupnp/goupnp.go

...s/_workspace/src/github.com/huin/goupnp/service_client.go

...s/_workspace/src/github.com/huin/goupnp/soap/soap_test.go

Godeps/_workspace/src/github.com/huin/goupnp/soap/types.go

.../_workspace/src/github.com/huin/goupnp/soap/types_test.go

...ps/_workspace/src/github.com/huin/goupnp/ssdp/registry.go

p2p/nat/natupnp.go