Admin page for managing user e-mail activation (#10557)

* Implement mail activation admin panel

* Add export comments

* Fix another export comment

* again...

* And again!

* Apply suggestions by @lunny

* Add UI for user activated emails

* Make new activation UI work

* Fix lint

* Prevent admin from self-deactivate; add modal

Co-authored-by: zeripath <art27@cantab.net>

routers/routes/routes.go

@@ -444,6 +444,11 @@ func RegisterRoutes(m *macaron.Macaron) {
 			m.Post("/:userid/delete", admin.DeleteUser)
 		})
 
+		m.Group("/emails", func() {
+			m.Get("", admin.Emails)
+			m.Post("/activate", admin.ActivateEmail)
+		})
+
 		m.Group("/orgs", func() {
 			m.Get("", admin.Organizations)
 		})