various failures when run on 14.04 host and grouper target

Trying to run the security tests from doanac's dynamic-security branch on a 14.04 host with grouper target, I see the following:

$ scripts/jenkins.sh -Q -s 015d18848e400c00 -a security
...
Traceback (most recent call last):
  File "/usr/bin/utah", line 176, in <module>
    main()
  File "/usr/bin/utah", line 156, in main
    testdir=testdir, output=args.output)
  File "/usr/lib/python2.7/dist-packages/utah/client/runner.py", line 210, in __init__
    self.process_master_runlist(resume=resume)
  File "/usr/lib/python2.7/dist-packages/utah/client/runner.py", line 494, in process_master_runlist
    data = self._fetch_and_parse(runlist)
  File "/usr/lib/python2.7/dist-packages/utah/client/runner.py", line 445, in _fetch_and_parse
    if data['battery_measurements']:
KeyError: 'battery_measurements'

Apparently this is not a problem on a 13.10 host.

I had to fix a few things in order to get it to work. Attached is a preliminary patch. I have no idea how correct it is overall, but it allowed the tests to complete.