LP#1390225: redirect to ctx.home_page instead of through ctx.logout_page

This way, we skip the auth.session.delete call that will error out because
we no longer have the authtoken cookie.

Signed-off-by: Mike Rylander <mrylander@gmail.com>
Signed-off-by: Chris Sharp <csharp@georgialibraries.org>
Signed-off-by: Jason Stephenson <jstephenson@mvlc.org>
LP#1390225: Fail to care about errors from auth.session.delete

We're just tossing this call over the wall and moving on.  We don't
care if the session wasn't there to delete or even if we didn't pass
a session to the server.

Signed-off-by: Mike Rylander <mrylander@gmail.com>
Signed-off-by: Chris Sharp <csharp@georgialibraries.org>
Signed-off-by: Jason Stephenson <jstephenson@mvlc.org>