Description of problem:
When running the rhevm-upgrade to migrate from RHEV 3.0 to RHEV 3.1, the script attempts to stop the ovirt-engine service instead of the jbossas service


Version-Release number of selected component (if applicable):
rhevm-setup-3.1.0-55

How reproducible:
Very

Steps to Reproduce:
1. Build RHEV 3.0 environment
2. Change proper channels and run 'yum update rhevm-setup'
3. Run rhevm-upgrade to migration to 3.1


Actual results:
Script fails because it attempts to stop the non-existent ovirt-engine service

Expected results:
Script stops the jbossas service and continues the migration

Additional info:
The workaround is to manually edit the engine-upgrade script, and find:

def stopEngine(service=basedefs.ENGINE_SERVICE_NAME):

and relace basedefs.EXEC_SERVICE, service, "stop", 

with basedefs.EXEC_SERVICE, "jbossas", "stop",