IE8 redirect fix.

Fixes bug in IE 8 32bit browser that makes the browser windows reload in a never ending loop.

Sticky sort order

Auto-detect bounced emails

Issue/384

Issue/366

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

Merge branch 'feature/xmlparser-revisited' of git://github.com/protich/osTicket-1.7 into feature/api-docs

Grammatical corrections to client/open.inc.php

Grammatical corrections

Before it required an edit for osTicket installations made to a folder other
than the root of a domain or subdomain. Now, the installation path is
autodetected and rewritted.

Also, don't assume that every Apache installation has mod_rewrite support.

    * Don't require a content-type, so data:,this is content
      is perfectly allowable. Such content is assumed text/plain
    * Support the charset hint, so
      data:text/plain;charset=iso-8859-1,content here
      will be translated to UTF-8 if the php iconv() function exists.
      Otherwise, content is left intact and assumed by the database to by
      UTF-8 already

Fix new message auto-response bug

Fix duplicate emails bug

Fix variable typo

Fix bug on staff group stats

Autosubmit form on load - refresh is called on submit giving it form object
Validate start/stop timeframe in the backend

Upgrader bugfixes