updated tests for the new DISTINCT crit

updated queries to use the new distinct criteria

fix cs

updated changelog

Add TZ checks and W on central page
Check for invalid columns
Add user's timezone, set it at login
Add tests
Add migration command
Take care of TZ change for current loggedin user
Add global timezone pref
Add timezone action in rules

If plugin include a new top level menu, create a way to assert 'title' and 'default' properties.
Setup menu should always be the last one
Move array item (Setup menu) using a know version safe procedure in PHP.
Assure that plugin cannot overwrite existing menu.

Replace deprecated fetch_array
Replace deprecated fetch_row
Replace deprecated fetch_assoc
Replace deprectaed data_seek
Replace deprecated insert_id
Replace deprecated list_fields, num_field and field_name
Replace deprecated free_result, missing depreciations in iterator
Replace deprecated affected_rows

Detect and skip duplicate document links

Preserve timeline order after merge
Suppress delete ticket notification
Update changelog
closes #5542

This reverts commit a7de857f.

fixes #5641