Fix dashboard nav, when panelgroup empty

The identity dashboard breaks with a common pattern
and doesn't use a panel group to group panels. When not
using accordion navigation, the last level of navigation is
not shown at all.

Change-Id: Ic76611009eac30658d0af082b0e46cd8f2da1832
Closes-Bug: #1391524
Stack update call needs password

Stack update call needs password otherwise it fails.
Added missing tests.

Change-Id: I99b0ce460c772862b22fa0216466589893948178
Closes-bug: #1394505
Merge "Stack update call needs password"
Merge "Fix dashboard nav, when panelgroup empty"
Merge branch 'master' of https://github.com/openstack/horizon