Add code to zenpacklib.TestCase to correct broken transaction abort behavior in BaseTestCase.
Merge pull request #25 from zenoss/feature/testcase_abort

Add code to zenpacklib.TestCase to correct broken transaction abort beha...
Fix Merge Conflict
Remove extra lines of code that are duplicated else where.
pep8 fixes
Ignore F821 pep8/flake8 errors because these are coming in from
monkeypatching magic.