Allow developers to specify a sorting position for groups of fields
selectable in the criteria select drop-down

Change verbage displayed at templates.php to express 'sets'

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

- Change the table header from `Email Templates` to
  `Email Template Sets`
- Change `Add New Template` to `Add New Template Set`

This removes any possible confusion for new users. Instead of
thinking that they have one template because it displays one
template set, the new verbage will clarify that the table
at templates.php is a list of their template sets.

pjax: Fix missing global `event` on Firefox

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

Change client to user

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

user preview tool tip

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

pjax: Fix a few more small issues

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

notes: Hide new note box when editing a note

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

Show user search box when adding a new user

Link to org & user landing pages & kill pjax on internal pages

Show auxiliary data for the organization at the end

We're sticking with user for now until 2.0

storage: Avoid using `strlen` to count bytes

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

Fix wrong ticket count on basic ticket search

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

Change the order of organization data export

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