software/monitor: edgetest-basic implementation

Instead of using complex mechanism with slaves (which are not monitored
anyway), allow the user to express monitoring with simple UI on normal
instance.

Additionally support for simple domains, not only URLs, is added.
10 jobs for 1.0 in 0 seconds
Status Job ID Name Coverage
  External
passed SlapOS.Eggs.UnitTest-Master.Python2

00:49:58

passed SlapOS.Eggs.UnitTest-Master.Python3

01:07:55

passed SlapOS.SlapRunner.ResilienceTest-Master

00:23:03

failed SlapOS.SlapRunner.ResilienceTest-Master.ERP5

00:35:56

failed SlapOS.SoftwareReleases.IntegrationTest-Master.Python2

09:05:32

failed SlapOS.SoftwareReleases.IntegrationTest-Master.Python3

07:14:13

passed SlapOS.Eggs.UnitTest-Master.Python2

passed SlapOS.Eggs.UnitTest-Master.Python3

00:57:15

passed SlapOS.SlapRunner.ResilienceTest-Master

00:25:57

failed SlapOS.SlapRunner.ResilienceTest-Master.ERP5

00:28:07