1.separate out user creation 2.remove default user creation part
Fix bug in getting local_ip when metadata ip ping fails
change test code to use new user fixture
1.add new step to create user 2. update topology to have user/pwd for all non-admin tenant 3.Make admin as member of non-admin tenant for non-admin teannt
new fixture for user creation
fix project user name
1. address review comments 2.Remove installing traffic packages in ubuntu-traffic VM
revert changes made on README file
Merge pull request #421 from shettyp/master

detailed comments on each file...