Update to fix issue #189: https://github.com/osTicket/osTicket-1.7/issues/189

 - Add To: address
 - Add ability to diable emailed replies
* Post Note
 - Make note title optional.
 - Add additional ticket status (state) options.
* Assign
 - Add claim to dropdown for self-assignments.

Change header to match the new names

Use the actual error message set in Staff::login instead of boring "Authentication Required";

* Change table name from ost_email_filter* to ost_filter*
* Add patch for target field.

 * Collapse Department into Staff tab.
 * Add a new 'Manage' tab - home for managing items, lists..etc.
 * Collapse Help Topics into Manage tab.
 * Move SLA and API from Settings to Manage tab.

This will help distinguish between the knowledgebase part which encompasses
FAQ's and canned responses, and the FAQ part which contains the articles
detailing frequently-asked-questions.