Redirect /teachers to /courses/teachers?hoc=true

Will update /teachers soon with relevant information, but at the moment
it is too outdated.

app/views/TeachersView.coffee

@@ -4,3 +4,9 @@ template = require 'templates/teachers'
 module.exports = class TeachersView extends RootView
   id: 'teachers-view'
   template: template
+
+  constructor: ->
+    super()
+
+    # Redirect to HoC version of /courses/teachers until we update the /teachers landing page
+    application.router.navigate "/courses/teachers?hoc=true", trigger: true