It doesn't and it's a shame.
Adobe . . . If you can hear me . . . we would appreciate support for Ruby On Rails . . .
Thanks . . .
Adobe . . . If you can hear me . . .
If you want to submit a feature request to the Dreamweaver engineering team, do it through the Bug Report/Feature Request form at http://adobe.ly/DWBug.
This is a user-to-user forum, so requests that are posted here are rarely seen by the people who matter.