Fix missed management_url setter in v3 client
Fix missed management_url setter in v3 client

Setting management_url is intended to mean that this is an overriding
URL not one received from the service catalog. This was fixed for
project scoped tokens but was missed from domain scoped tokens.

Change-Id: I8484f4a26a5695ef7ae962918ad442fe20bd2caa
Related Change: I2fa41e2ae1b853bbb254698cf94b9314eb0f0903
Related-Bug: #1252927

varunarya10/keystonemiddleware