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>

Feature :: Access Control 2.0

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

Fixup IE and firefox rendering issues

This will allow the typeahead to wait a short amount of time before fetching
results from the backend, which will allow for request debouncing per se. In
other words, not every keystroke will signal a request to the backend to
update the results. Instead, when the user slows down typing, the request
will begin thereafter.

This begins with a layout manager for forms which will eventually be
designable via the UI for dynamic forms.

Reset permissions and change primary department and role

getVar() is now called first, then object properties and array properties
are considered, and then getTag() is considered if none of the other options
work. This allows for more predictable results using the variable
replacement system, and allows ::getVar() to override every other means to
use variables in email templates.

search: Fix several things related to advanced search

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

Move CLI to the include/ folder

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

log php mail error

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