Removed the Redmine core template and Redmine core hooks instead.

lib/rate_memberships_hook.rb

@@ -0,0 +1,15 @@
+class RateMembershipsHook < Redmine::Hook::ViewListener
+  def view_users_memberships_table_header(context={})
+    return content_tag(:th, l(:rate_label_rate) + ' ' + l(:rate_label_currency))
+  end
+
+  def view_users_memberships_table_row(context={})
+    return context[:controller].send(:render_to_string, {
+                                       :partial => 'users/membership_rate',
+                                       :locals => {
+                                         :membership => context[:membership],
+                                         :user => context[:user]
+                                       }})
+                                                   
+  end
+end