Review Request: gadget_holder.getIframeElement fails to return the iframe element when pubsub-2 feature is in use

[Dan Dumont]

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https://reviews.apache.org/r/983/
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Review request for shindig.


Summary
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Change to return first descendant iframe element instead of just firstChild.


This addresses bug SHINDIG-1554.
    https://issues.apache.org/jira/browse/SHINDIG-1554


Diffs
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http://svn.apache.org/repos/asf/shindig/trunk/features/src/main/javascript/features/container/gadget_holder.js
 1137018 

Diff: https://reviews.apache.org/r/983/diff


Testing
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Tested in example container using a gadget with pubsub-2 feature.


Thanks,

Dan