Alex Kang 8dca2a4031 Tempest: Support lbaas api & scenario tests to run against upstream
NSX-v lbaas requires lbaas's network attached to an exclusive router.
To run lbaas tests on upstream implemantion, we need to remove
rotuer_type attributes at creating router.

Fixed lbaas API:
  delete-all load-balanacer resources without deleting listeners.
  wait for status function is now at load_balancers client.

Lbaas scenario tests replace urllib2 with urllib3.

Change-Id: Ief935eff8007c4c46115309f55ab3447ce146340
2016-07-01 10:47:10 -07:00
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