Added the ability to copy a project in the Project Administration panel.

* Added Copy project button.
* Added Project#copy_from to duplicate a project to be modified and saved by the user
* Added a ProjectsController#copy based off the add method
** Used Project#copy_from to create a duplicate project in memory
* Implemented Project#copy to copy data for a project from another and save it.
** Members
** Project level queries
** Project custom fields
* Added a plugin hook for Project#copy.

  #1125  #1556  #886  #309

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@2704 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/projects/copy.rhtml

@@ -0,0 +1,16 @@
+<h2><%=l(:label_project_copy)%></h2>
+
+<% labelled_tabular_form_for :project, @project, :url => { :action => "copy" } do |f| %>
+<%= render :partial => 'form', :locals => { :f => f } %>
+
+<fieldset class="box"><legend><%= l(:label_module_plural) %></legend>
+<% Redmine::AccessControl.available_project_modules.each do |m| %>
+    <label class="floating">
+    <%= check_box_tag 'enabled_modules[]', m, @project.module_enabled?(m) %>
+    <%= l_or_humanize(m, :prefix => "project_module_") %>
+    </label>
+<% end %>
+</fieldset>
+
+<%= submit_tag l(:button_copy) %>
+<% end %>