Service desk email customization needs

[Erinn Danos]

Where is there documentation on Service Desk email customization?

I am looking for customizing the following: 

1) Default language used on "your request has been received"  and "your request has been resolved" emails: attach"

Screen Shot 2015-09-18 at 6.30.08 PM.png

2) Is there a way to edit the email subject line? My Help desk customers wont really want to know this email is from [JIRA]: 

Screen Shot 2015-09-18 at 6.30.18 PM.png

[Tommy Voss]

See and up-vote JSD-218