[AutoQA] #444: autoqa tests are not able to make bodhi comments

[AutoQA]

#444: autoqa tests are not able to make bodhi comments
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 Reporter:  tflink  |       Owner:  tflink
     Type:  defect  |      Status:  new
 Priority:  major   |   Milestone:  Future tasks
Component:  core    |  Resolution:
 Keywords:          |  Blocked By:
 Blocking:          |
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Comment (by tflink):

 the problem is in bodhi_utils.bodhi_already_commented() where the update
 is now being passed in as unicode and failing the check for a string.

 patching for this fix and doing a bit of rework on the traceback masking
 that made this more of a pain to debug

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Ticket URL: <https://fedorahosted.org/autoqa/ticket/444#comment:2>
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