Displaying sites on the Message Details page

[tlam]

Will it be possible to display the distinct sites that a message belong to on the Message Details page (/sentry/group/<group_id>/)? I'm thinking somewhere underneath the Meta column. It can be useful while going through many exceptions across multiple django sites.

[dcramer]

Added sentry_sites plugin which acts like servers/urls except for sites (closed by b164f9e)