Patch to display user list in setting

[quanvn]

Hi @nutso, I make this small patch in the setting views to allow admin to select user from user list instead of finding and entering user id. Please check and consider merge it into your main release. Thanks
File affect app/views/settings/_recurring_tasks_settings.html.rb

1. Add these at the begining of file
   <%-
   users = User.active.all.sort_by {|e| e[:lastname]}
   -%>
2. replace the

with
<%= select_tag("settings[journal_attributed_to_user]",
options_from_collection_for_select(users, :id, :name, settings['journal_attributed_to_user']),
:include_blank => true) %>

[nutso]

develop branch confirmed in 2.x, still need to test on 3.x