forms: Add default selection to SelectionField

Reviewed-By: Peter Rotich <peter@osticket.com>

This allows administrators to select a default value for selection fields
deriving from Custom Lists. This has been implemented on the ChoiceField,
but was forgotten on the SelectionField

forms: Add free text field

Reviewed-By: Peter Rotich <peter@osticket.com>

bug: Decode mailbox when parsing an email address

Reviewed-By: Jared Hancock <jared@osticket.com>

This addresses cases where incoming emails doesn't include charset and
mailbox may include non-ascii characters.

  * Use the title of "Information" with internal tag of "info"
  * Add "Visibility" column to UI and retire "Required" and "Internal"
    columns
  * Add visibility selection to new fields and show visibility to the user
    information fields when displayed on the ticket details form
  * Make the visibility settings translatable
  * Use constants internally for visibility configuration detection
  * Use a larger input when managing the information HTML content
  * Fix validation errors for new fields
    * Enforce new field name uniqueness
    * Enforce new field name character validation

oops: Fix hardcoded table prefix

Reviewed-By: Jared Hancock <jared@osticket.com>

orm: Fix MySQL occasional "Commands OOS" error

Reviewed-By: Peter Rotich <peter@osticket.com>

Under certain intermittent circumstances (usually a significant number of
ORM queries), the ORM will trigger a MySQL error:

Commands out of sync; you can't run this command now

Usually this MySQL error is related to buffered versus unbuffered queries.
However, the ORM already uses buffered queries (MySQL calls it
"store_result"). In this case, it appears there is some sort of race between
fetching the result metadata before configuring the statement for buffering.
(By "race" I mean that the error is not reliably triggered).

This patch seems to fix the issue by configuring buffering before fetching
result metadata — necessary to configure the fetching (output) phase of the
statement.

Conflicts:
	js/osticket.js

This is similar to the section break but doesn't have the <hr> element
before it and allows for HTML input (including images)

Add database name and schema signature to the system info page

Reviewed-By: Jared Hancock <jared@osticket.com>

Improve info display & formatting
Only show 8 chars of the last commit

redactor: Add right-to-left support

Reviewed-By: Peter Rotich <peter@osticket.com>

forms: Support non-US locale on client portal

Reviewed-By: Peter Rotich <peter@osticket.com>

The staff portal has a feature where the date fields are converted to
YYYY-MM-DD prior to form submission. However, this code was not ported to
the client portal. Therefore, for non-US date formats (d/m/Y for instance)
would not be processed properly by the server and would be nulled prior to
validation.

bug: Add ticket status properties field exist before loading initial data

Reviewed-By: Jared Hancock <jared@osticket.com>

Add ticket status properties field before loading init data.

Dependent fields

Reviewed-By: Jared Hancock <jared@osticket.com>

Ticket statuses revisited

Reviewed-By: Jared Hancock <jared@osticket.com>

Fix #1302.

Reviewed-By: Peter Rotich <peter@osticket.com>

Hide multi selection option for typeahead selections

Consider current status settings to determine if a ticket is reopen-able
Show a warning on staff's ticket view if the ticket is not reopen-able