issue: iFrame On Install

This addresses the "Call to getAllowIframes() on NULL" error on installation
pages. This is due to 4781 that introduced the concept of allowing multiple
iFrames, where we are not checking for `$cfg` before calling the method.
This adds a check for `$cfg` so the errors do not occur.

oops: Emojis Strip Korean

This addresses an issue where Korean text is stripped from the body. This is
due to the strip_emoticons function, as Korean text is in the same unicode
range as some of the emojis.

iframe: Allow Multiple iFrame Domains

issue: Maxfilesize Comma Crash

issue: Strip Emoticons

Fix bug: send new ticket alert to account manager

This addresses an issue where emoticons/emojis cut off the remainder of the
email when being added to a ticket thread.

issue: Organizations Users Sort

This addresses issue 4803 where sorting by Users on Organizations does not
sort properly. It sorts by name instead of the User count. This corrects the
value in the `$sortOptions` array from `users` to `user_count`.

not sending new ticket alert to account manager.

issue: Duplicate Form Titles

This addresses an issue mentioned in the forum where having more than one
custom field on a ticket shows the same title for all forms on the
client-side ticket view (after creation). This adds an array of the form
names indexed by sort order and displays them in the correct order with the
correct names.

Previously, we added a security header to prevent click-jacking called
"X-Frame-Options". This introduced an issue with people using osTicket in
iFrames on their websites. To mitigate the issue, this updates the security
header to allow the site to be framed from specified domains, if none
provided we default to 'self'. This adds a new field to General System
Settings called "Allow iFrames" where you may enter a comma separated list
of domains that the site can be framed on. This also adds a validator for
the field to validate the domains and ensure they fit the <host-source>
syntax from [Mozilla Developer
Docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/frame-ancestors#Sources).

issue: FAQ Return Errors

This addresses an issue reported on the Forum where creating a new FAQ and
not filling out required information returns the correct error but returns
the incorrect template (FAQ View Template). This is due to the check for an
FAQ when determining the template to return. This adds a check for the FAQ
ID to determine if it’s an actual FAQ or just a model instance.

issue: FAQ Search Results

issue: Canned Response Variables

This addresses an issue reported on the forum where searching for a keyword
in FAQ search brings back more results than it should. This is due to the
format of the query selecting the results, essentially, the `WHERE NOT`
statement is not properly formatted so the `OR` statements take precedence
over the `WHERE NOT` causing non-public results to be shown to the client.
The `WHERE NOT` statement contains the bit to select from only public faqs
and since the `OR` takes precedence it will return the non-public results
too.

issue: PHP 7.2 Ticket Status

This addresses issue 4756 where the `%{recipient.ticket_link}` variable is
not being replaced when the canned response is loaded in the reply box; all
other link variables work. This is due to the recipient object not being
passed to the variableReplacer which means the ticket_link is not available.
This adds the recipient object to the variableReplacer so the ticket_link
variable is properly replaced like the others on load.

This addresses issue 4716 where updating a Ticket Status throws a fatal
error of "Too few arguments" when using PHP 7.2. This is due to `$errors`
not being passed to the `update()` function causing PHP 7.2 to freak out.
This creates an `$errors` array and passes it to `update()` so PHP 7.2 is
happy and we are all happy. :)

Minor typo fix

issue: No Save Button On Quicknotes

issue: Upgrader Wrong Guide Link

This addresses issue 4738 where the Upgrade and Migration Guide link is
incorrect. This updates the link to the new Documentation site.

This addresses issue 4725 where there is no save button when editing a quick
note. This is due to the jQuery update which changed how a few things work
with redactor.

changelog: 1.10.5

This adds the changelog for 1.10.5 maintenance release

i18n: Fix build language packs for the 1.10.x branch

issue: Translation Flags Not Clickable

This addresses an issue where the second row of translation flags are not
clickable when editing a Form with 23+ languages installed. This adds a
`height` of "auto" so that the entire div fits the flags’ surface area,
making them clickable again.

jq: Update To jQuery-3.3.1

This pull request is wayyyy overdue. This updates jQuery and all related
files to the latest jQuery release (3.3.1). This also adds a new script
called jQuery-Migrate that maintains older functions needed for a few things
(eg. `filedrop.field.js`).