Changed v2.0/samples/routers-show-res.json to show the correct output.

The routers-show-res.json file was changed to match the output of the
neutron router-show command.

Change-Id: I894172a4f15dd0771efd96f13d1d3e888d097979
Closes-Bug: #1276690
Merge "Changed v2.0/samples/routers-show-res.json to show the correct output."