Don't hide site multi-select actions in context menu

[bdurette]

When I select multiple sites from the list, there are actions available to me in the context menu (Start, Restart, Stop, and Delete). As far as I can tell, these actions are only available in the context menu, which is non-standard context menu UX. Suggest making use of all the whitespace in the content area or adding a Site menu that has these actions (as well as actions for single sites).