If a gerrit hook blocks none of the other hooks queued behind it run.
Give each hook subprocess 10 minutes to run otherwise timeout and kill
that process.
Change-Id: Ic5e1243e08088dbf0c5bff49e7fc05bcb867819b
Reviewed-on: https://review.openstack.org/11475
Reviewed-by: James E. Blair <corvus@inaugust.com>
Approved: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins