Closes #9896.
* Add `IObjectCopiedEvent` handler to update an `IBaseContent`'s
  creation date
Fixed some problems with IntDisplayList.
add basis for non-KSS inline validation
changelog
fix a test failure
Preparing release 1.8.4
Back to development: 1.8.5
inline validation fix for portal_factory
Take minute_step into account as plone.app.form.widgets.datecomponent consider it now.  See https://dev.plone.org/ticket/8961 and https://dev.plone.org/ticket/11251
We till need to adapt CMFPlone/skins/plone_templates/calendar_macros that wrongly do not pass any minute_step to plone.app.form.widgets.datecomponent.result method that accept this parameter...
Use minute_step for search macro also
track current fieldset even when using js form tabbing
Merge pull request #13 from gbastien/master

Add minute_step to CalendarWidget so we can define another minute step than hardcoded 5 for now
updating CHANGES.txt with last merged pull request
fix http://plone.org/products/plone/security/advisories/20121106/17
Different event handler to fix #13326

The other event handler was triggered before the
object has been added to the zodb.
The event handler triggers code from LinguaPlone
that depends on the object being somewhere in the zodb,
because it tries to get some utilities.
move more kss stuff to plone.app.kss
Temporary Revert "move more kss stuff to plone.app.kss"

1.8.4 breaks LinguaPlone, the current master would need an updated plone.app.kss too.
Without this commit,I can createa  1.8.5 that would work without further changes.
After I cut the release, I reapply the commit on top again.

This reverts commit 68f47992f3d7ff7317d66835537eeeb88bcf260d.
Preparing release 1.8.5
Back to development: 1.8.6
Revert "Temporary Revert "move more kss stuff to plone.app.kss""

This reverts commit 660dbabcecc10c1b75945bb3a0cb506121f5ea72.