Not working with Redmine 2.2.3

[hubiktomas]

There is no Send diff email in "My Account" page in Redmine 2.2.3. The plugin appears in the Plugins menu.

Btw. I had to change the init.rb file like this:

require 'rubygems'

require 'dispatcher'

require 'redmine'
require 'changeset_patch'

Redmine::Plugin.register :redmine_redmine_diff_email do
name 'Redmine Diff Email Plugin'
author 'Kah Seng Tay, Sergey Generalov, Lamar, Ivan Evtuhovich'
description 'This is a plugin for Redmine that sends diff emails on commits.'
version '0.0.4'
end


Dispatcher.to_prepare do

ActionDispatch::Callbacks.to_prepare do
Changeset.send(:include, ChangesetPatch)
end


As I get no such file to load -- dispatcher error when running rake redmine:plugins:migrate RAILS_ENV=production command, so this may be the cause.

Could you, please, help?

Nice plugin btw.