add sort option for crab status #4163
removing postmortem.py
Merge pull request #4207 from qunox/removepostmortem

removing postmortem.py
delete jobtypes.py
Merge pull request #4208 from qunox/deletejobtype

delete jobtypes.py
removing CommandResult()
Merge pull request #4210 from qunox/4204RemoveCommandResult

removing CommandResult()
fix bug when using private instace
Merge pull request #4211 from qunox/privatesubmit

raise exception if serverurl is none
Merge pull request #4195 from qunox/sorted

add sort option for crab status #4163