Updated openstack/openstack
Project: openstack/horizon  af2970f5a2c8fffefe03744f9e74f24d6e779db0

fix wrong background color on workflow tabs

The navigation tab styling has changed and seems to accidentally
affect the workflow tabs as well (originally the 'same' bootstrap
tab styling).

Change-Id: I11bac4fa13c4b91cdf4cb4d2757f89d23f01b28b
Closes-Bug: #1383631