Add three new department settings.
[x] Include supported attachments in ticket notices.(If checked, display following 2 fields)
[.zip,.jpg,.png] List of supported extensions separated by comma
Maximum size of attachment to include in MB: 
When a reply is sent via email, the attachments of the supported extension types (case InSenSitive) with a maximum size equal or under the number of MB specified, will be included in the email for the reply in which they are attached. Only replies that have attachments will have attachments included in the email.