5.27.3 - Notes and version bump

[NFC] Update DAO test for 5.27

The settingTest class was being too aggressive about creating and deleting domains,
this teaches it to not delete pre-existing domains.
Also marks an old unused api function deprecated.

Switches api v3 and v4 to use that method so they are upgrade-safe by default.

Ensure serialize field exists before adding to query

5.27.2 - Add release notes. Bump version.

Revert "#1847 Fix datepicker to respect the searchDate offsets"

Remove #1847 - the initial fix caused other regressions, and the full fix merits a longer incubation

The intent is to refix-better in the rc

This reverts commit 4c69df35.

#1867 Ensure that the qill matches the filter when no time is…

Dedupe, report date backports

We later call Contact.create on both contacts so that should manage the caches for this update 'as well as for any other update'
and solve the bug + reduce locking queries

#1847 Fix datepicker to respect the searchDate offsets

#1865 Remove civiwp and option query strings from redirected …

#1865 Remove civiwp and option query strings from redirected url as they only relate to CiviCRM internal uses

I have some misgivings about this since I suspect the rationale behind the search offsets was primarily about the clunky UI.

Having said that I think the datepicker UI is a bit clunky on this front too as it's not obvious you can choose earlier
dates. This does at least restore established behaviour.

#1847

#1864 Revert changes to ACL test and ACL API class and update…

#1864 - 5.27 backport for search is always including deleted contacts

5.27.1 - Add notes. Update version.

Ensure that when normal routing trackable urls and opens in Joomla go to the frontend not administrator site

Fix function declaration to ensure that passing in frontend variable doesn't cause htmlizing by accident in unit tests

Ensure that when normal routing trackable urls and opens in Joomla go to the frontend not administrator site