Refactor attachments upload for the new model.
Change file to unix file format
Set default timezone when none is set in php.ini
Merge pull request #502 from protich/issue/web_attachments

Web attachments
Merge pull request #504 from protich/issue/default_timezone

Default timezone
Merge branch 'develop' of github.com:osTicket/osTicket-1.7 into develop
Pulled/merged recent changes from git@github.com:osTicket/osTicket-1.7.git develop branch