aaa: fix session timeout

The fix is done by the following ways:
a. Public Queries which do not require user should not perform session refresh (they should be agnostic to it)
b. The API resource should not perform refresh as well
Change-Id: I6640beef3ca28f95def87ac5e29d41f75b0fddd8
Topic: AAA
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1168842
Signed-off-by: Yair Zaslavsky <yzaslavs@redhat.com>