Collective-fingerpointing

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- Avoid possible ``ConfigurationConflictError`` on upgrade step registration.
[hvelarde]

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- Add support for Cloudflare's ``CF-Connecting-IP`` request header to log real client IP addresses.
[hvelarde]

- We now use plone.api to get the id of the user instead of the ``AUTHENTICATED_USER`` key on the request.
Also, we now use the ``getClientAddr()`` function to get remote IP address.
These changes simplify testing.

- Add support for logging workflow transitions.
[hvelarde]

- Avoid ComponentLookupError when plonectl adduser.
[jianaijun]

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.. Warning::
Starting with this version you need to explicitly configure the package to use a separate audit.log file.
Check the documentation to find out how to do so.

- Make log rotating configurable using the `zope-conf-additional` option.
Note that now, by default, rotating is disabled.
[rene, hvelarde]

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- Drop support for Plone 4.2.
[hvelarde]

- Log deletion of groups too.
If you are using Plone < 4.3.8 you may need to update versions of `Products.PlonePAS` and `Products.PluggableAuthService`.
[fRiSi]

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- Avoid UnicodeEncodeError with log messages.
[jianaijun, rodfersou]

- Support automatic rotation of audit log files at timed intervals;
a new file is created every day and up to 30 backup files are maintained (closes `9`_).
[hvelarde]

- Use object representation to log life cycle events;
this fixes an issue with Archetypes-based objects being dumped to the log (refs. `8`_ and fixes `38`_).
[hvelarde]

- Package is now compatible with Plone 5.0 and Plone 5.1.
[hvelarde]

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- Added Chinese Simplified translation. [jianaijun]

- Package no longer rises `AttributeError` when running interactive console (`bin/instance debug`) (fixes `30`_).
[hvelarde]

- Clean up audit log messages.
[hvelarde]

- Disable rendering of left and right columns in audit log view.
[hvelarde]

- Audit log entries are now shown in reverse order (newer entries first).
[hvelarde]