Fix keystone *-list order by 'name'

'keystone user-list' is order by 'name' now.(see bug 1073437)
But {role, service, tenant, user-role}-list are not. So this patch fixes these.

Fixes bug 1091894

Change-Id: I1876d0b1e1ea625efe91c3f8261bafd2bf34b0de
Pin requests to >=0.8.8.

requests add SSL CERT VERIFICATION support since 0.8.8.
fix bug #1094699

Change-Id: I7974983087f7483283438906d738bec7cba84ed2
Merge "Fix keystone *-list order by 'name'"
Merge "Pin requests to >=0.8.8."