fixes

app/helpers/application_helper.rb

@@ -196,4 +196,11 @@ module ApplicationHelper
     end
     return providers
   end
+
+  # Receives a hash, generated from User model, function get_roles
+  # Outputs the roles of a user, including the conferences for which the user has the roles
+  # Eg. organizer(oSC13, oSC14), cfp(oSC12, oSC13)
+  def show_roles(roles)
+    roles.map { |x| x[0].titleize + ' ' + x[1] }.join ', '
+  end
 end