Cleanup copy and pasted token

Correctly use fixtures instead.

Change-Id: If726b1365cb7659a9db011bdcb37252563f84ef4
Use discovery fixture

Use the provided fixtures rather than copying code out of
keystoneclient.

Change-Id: I550edc355f008d94d6c0b834494d693137c29111
Router create distributed accepts lower case

Neutron router-create optional argument distributed
does not accept "true/false" anymore.
It only accepts value with Camel case "True/False".

This patch will allow the users to provide both
True/true or False/false.

Change-Id: I79577bd70a796543b9dea53b4839512eb8944d7c
Closes-bug: #1368934
Merge "Router create distributed accepts lower case"
Merge "Cleanup copy and pasted token"
Merge "Use discovery fixture"