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