Improve slapos cloud form and scripts

See merge request !559
3 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
failed SlapOS-Master.UnitTest-Master

03:39:53

failed SlapOS.Eggs.UnitTest-Master.Python2

00:19:08

failed SlapOS.Eggs.UnitTest-Master.Python3

00:19:50