Plone.app.discussion

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Bug fixes:

- Remove unittest2 dependency
[kakshay21]

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Bug fixes:

- Fixed tests with newer testbrowser.
[mauristvanrees]

- Remove deprecated __of__ calls on BrowserViews
[MrTango]

- Improve English on a couple of field descriptions
[djowett]

- Fix some easy pep8 issues
[djowett]

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Bug fixes:

- Make comment on private content not publicly available in search results.
Part of PloneHotfix20161129. [vangheem, maurits]

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New features:

- Reindex comments when they are modified.
[gforcada]

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Bug fixes:

- Apply security hotfix 20160830 for redirects. [maurits]

- Update Traditional Chinese translation.
[l34marr]

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Bug fixes:

- Use zope.interface decorator.
[gforcada]