Kill the agent if three subsequent requests fail

Change-Id: Ia5ec6935673133af2e60f339b035dba3438b617f
Bug-Url: https://bugzilla.redhat.com/1008505
Signed-off-by: Martin Sivak <msivak@redhat.com>
Signed-off-by: Greg Padgett <gpadgett@redhat.com>