Unwrapped div appears as content change

[kylegibson-rldatix]

FAIL: htmltreediff.test_html.test_unwrap_div_shows_as_content_change
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Traceback (most recent call last):
  File "/home/vagrant/env/src/nose/nose/case.py", line 186, in runTest
    self.test(*self.arg)
  File "/home/vagrant/PolicyStat/htmltreediff/htmltreediff/test_html.py", line 141, in test_unwrap_div_shows_as_content_change
    '<ul><li>Foo bar</li></ul>'
AssertionError: '<ul><li><del><div>Foo bar</div></del><ins>Foo bar</ins></li></ul>' != '<ul><li>Foo bar</li></ul>'

[kylegibson-rldatix]

Hm. So there's no precedent in the code base for a change like this. Most of the code is written to be non-html specific. If we were to code this specific to div's it would need to be in the html module. But by then, it seems too late to intercept the change without some additional pre or post processing, thus making the diffing slower than it already is. Boo.