Adds version status to limit issue assignments (#1245).

Available version statuses are:
* open: no restriction
* locked: can not assign new issues to the version
* closed: can not assign new issues and can not reopen assigned issues

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3020 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/fixtures/issues.yml

@@ -157,3 +157,35 @@ issues_010:
   status_id: 1
   start_date: <%= Date.today.to_s(:db) %>
   due_date: <%= 1.days.from_now.to_date.to_s(:db) %>
+issues_011: 
+  created_on: <%= 3.days.ago.to_date.to_s(:db) %>
+  project_id: 1
+  updated_on: <%= 1.day.ago.to_date.to_s(:db) %>
+  priority_id: 5
+  subject: Closed issue on a closed version
+  id: 11
+  fixed_version_id: 1 
+  category_id: 1
+  description:
+  tracker_id: 1
+  assigned_to_id: 
+  author_id: 2
+  status_id: 5
+  start_date: <%= 1.day.ago.to_date.to_s(:db) %>
+  due_date:
+issues_012: 
+  created_on: <%= 3.days.ago.to_date.to_s(:db) %>
+  project_id: 1
+  updated_on: <%= 1.day.ago.to_date.to_s(:db) %>
+  priority_id: 5
+  subject: Closed issue on a locked version
+  id: 12
+  fixed_version_id: 2 
+  category_id: 1
+  description:
+  tracker_id: 1
+  assigned_to_id: 
+  author_id: 2
+  status_id: 5
+  start_date: <%= 1.day.ago.to_date.to_s(:db) %>
+  due_date: