Remove manual roll-up on tickets page since it's auto-added.

Add danger to delete actions.

Conflicts:
	WHATSNEW.md
	include/class.dynamic_forms.php
	include/class.mailer.php
	include/class.thread.php
	include/class.ticket.php
	include/staff/filter.inc.php

Tasks Email Templates & Alerts

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

search: Auto reindex when _search is created

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

events: Add events for help topic changes

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

upgrade: Defer migrating attachments from v1.6

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

cli: Add concept of cli applet to upgrade

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

This patch automatically configures reindexing of the search table when the
table is dropped and recreated.

Revert this commit once fixed.

Add ability to export tasks

Support edit/update of dynamic data

This will allow for self filtering form based on options
Delegate form validation to Form instead of DynamicFormEntry

* Preserve external storage flag on field configuration
* User gridlayout to render task's forms
* Use new roles for task's nav

Credit: Jared Hancock <jared@osticket.com>

This patch suggests that old attachments in the `upload_dir` can be located
and left alone when upgrading away from osTicket v1.6. Later, via the `file`
command line applet, the attachments can be migrated into the database, or
to the new filesystem plugin after it is installed with:

    php manage.php file migrate --backend=6 --to=D

This allows attachment migration to be retried in the event it failed for
any reason.

Feature :: Access Control 2.0

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

Fixup IE and firefox rendering issues