pjax: Fix missing global `event` on Firefox
Merge pull request #822 from greezybacon/issue/pjax-firefox

pjax: Fix missing global `event` on Firefox

Reviewed-By: Peter Rotich <peter@osticket.com>
Change verbage displayed at templates.php to express sets

- 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: Restore proper page titles
Merge pull request #841 from beckonandmuse/issue/template-verbage

Change verbage displayed at templates.php to express 'sets'

Reviewed-By: Jared Hancock <jared@osticket.com>
Don't assume include_dir is set
Show link to scp on client login page
filter: Add ability to filter on user and org info
forms: Fix field lookup issue in DynamicForm::getField
filter: Add more context to selected field
filter: Allow specification of sorting for criteria

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