Sponsors dashboard

Removed explicit rendering of sponsors

app/views/admin/sponsors/index.html.haml

@@ -0,0 +1,5 @@
+.row
+  .col-md-8
+    = semantic_form_for(@conference, :url => admin_conference_sponsor_path(@conference.short_title, @conference.sponsors)) do |f|
+      = dynamic_association :sponsors, "Sponsors", f
+      = f.action :submit, :as => :button, :button_html => {:class => "btn btn-primary"}