caucase.http: Accept user certificates signed by non-current CA.

Otherwise, client certificates issued before a new CA is used get rejected
once the new CA becomes current.
24 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed SlapOS.Eggs.UnitTest-Master.Python2

00:17:38

passed SlapOS.Eggs.UnitTest-Master.Python3

00:23:23

passed SlapOS.Eggs.UnitTest-Master.Python2

00:34:17

passed SlapOS.Eggs.UnitTest-Master.Python2

00:25:08

passed SlapOS.Eggs.UnitTest-Master.Python2

00:33:17

passed SlapOS.Eggs.UnitTest-Master.Python2

00:08:36

passed SlapOS.Eggs.UnitTest-Master.Python2

00:11:58

passed SlapOS.Eggs.UnitTest-Master.Python2

00:12:42

passed SlapOS.Eggs.UnitTest-Master.Python2

00:31:21

passed SlapOS.Eggs.UnitTest-Master.Python2

00:07:24

failed SlapOS.Eggs.UnitTest-Master.Python2

00:14:18

passed SlapOS.Eggs.UnitTest-Master.Python2

00:29:25

passed SlapOS.Eggs.UnitTest-Master.Python2

00:12:24

passed SlapOS.Eggs.UnitTest-Master.Python3

00:15:50

passed SlapOS.Eggs.UnitTest-Master.Python3

00:33:06

passed SlapOS.Eggs.UnitTest-Master.Python3

00:15:01

passed SlapOS.Eggs.UnitTest-Master.Python3

00:30:03

passed SlapOS.Eggs.UnitTest-Master.Python3

passed SlapOS.Eggs.UnitTest-Master.Python3

00:32:41

passed SlapOS.Eggs.UnitTest-Master.Python3

00:22:51

passed SlapOS.Eggs.UnitTest-Master.Python3

00:34:58

failed SlapOS.Eggs.UnitTest-Master.Python3

00:12:33

passed SlapOS.Eggs.UnitTest-Master.Python3

00:30:31

passed SlapOS.Eggs.UnitTest-Master.Python3

00:11:56