This addresses an issue where configuring a System Email to have a
Department and then editing/saving changes on the configured Department will
change the System Email's Department back to the the default Department.
This was due to a un-needed Department Status check introduced with commit
`1d361b51`. This also updates all instances of Dept Status comparison to be
case insensitive and non-translated.

This addresses an issue where osTicket did not ensure associated items exist
before saving to the database. This also addresses an issue where the Parent
Topic error was not displayed on page.

This addresses an issue where osTicket did not ensure associated items exist
before saving to the database. This also addresses an issue where the Parent
Topic error was not displayed on page.

This commit avoids camel casing the select values for Archiving Help Topic and Department options. It also fixes an issue where the selected value was being translated and it should not have been.

This addresses issue 3934 where setting the Default Department to
Private will throw “Fix errors below” error without showing the specific
error below. This adds the error class to the field so the system will
show what to fix.

Make sure you cannot reopen tickets with archived Help Topics. Change radio buttons to Dropdown for status.

Use class instead of id on form element that triggers overlay on submit.

In addition to 71a6b2a0 splitted "this department" here.

* Separate primary from extended access members when listing department
  access.

* Add ability to update primary department members role

* Quick staff add - inherit role of the primary department as default role

Within this commit, several files got updated to split up strings like "Disable for this team" / "Disable for this department" into "Disable for" and "this team"/"this department".
So a) a little bit less translations and b) all strings of "this (ticket|task|API|canned|FAQ|depart|email|group|site|SLA|agent|team|template|help|ban|category|custom|end user|role)" can match already existing "this ..." translations now.
PS: Didn't remove all that whitespaces in include/staff/tpl.inc.php - seems like my php editor app has done that automatically :/

This is my attempt at removing similar texts from the translator work load.
It also makes an attempt at dropping some misspelled words and works toward
standardizing some phrases.

Add a checkbox option within the department setting to disable the "Claim on
Response"

Feature must be enabled globally in order to be disabled locally (duh!)

Instead of selecting the first enabled, visible, non datepicker field, just
use the new @autofucus HTML5 attribute to automatically select the
autofocused field

Use http::build_query instead of inline urlencode

Multilanguage Support via gettext

- added gettext encapsulations to all texts i thought necessary
- added fallback function for the case that the gettext extension isn't loaded
- added browser language detection
- added gettext to the list of optional extensions in setup
- rewritten some of the texts to use sprintf instead of appending strings
- added german translation file
- removed mark_overdue-confirm from cannedresponses.inc.php

extend multi language support and a fex fixes

- Better detection of translation files
- Added functionality to redirect language codes (see redirecting
language codes)
- Ticket Status can be translated
- The Datepicker can be translated
- Extended functionality of 'testlang.php' to show what language code is
used to translate

Forgotten to apply a patch from RC5 to RC6

- Forgotten to change $var to $vars in line 380 of class.mailfetch.php
- Removed unneeded comment

Added php_gettext as primary translation engine

- Added php_gettext support (thanks to Danilo Segan and Steven
Armstrong)
- php_gettext is now the primary translation engine
- Extended language detection functionality

Add error/misconfiguration checks and fix undefined variables

As previously implemented, only "Department and group members" could be set

Departments without email will use the system default email as the default
outgoing email.