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

test/fixtures/queries.yml

@@ -106,4 +106,32 @@ queries_006:
     --- 
     - - priority
       - desc
-  
+queries_007: 
+  id: 7
+  project_id: 2
+  is_public: true
+  name: Public query for project 2
+  filters: |
+    --- 
+    tracker_id: 
+      :values: 
+      - "3"
+      :operator: "="
+
+  user_id: 2
+  column_names: 
+queries_008: 
+  id: 8
+  project_id: 2
+  is_public: false
+  name: Private query for project 2
+  filters: |
+    --- 
+    tracker_id: 
+      :values: 
+      - "3"
+      :operator: "="
+
+  user_id: 2
+  column_names: 
+