Merged IssuesController change_status and add_note actions.

The 'Change status' specific form removed and now accessible from issue/show view with no additional request (click on 'Update' to show the form).
The 'Change issue status' permission is removed. To change the status, the user just needs to have either 'Edit' or 'Add note' permissions and some workflow transitions allowed.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1043 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/issue.rb

@@ -180,6 +180,13 @@ class Issue < ActiveRecord::Base
     project.assignable_users
   end
   
+  # Returns an array of status that user is able to apply
+  def new_statuses_allowed_to(user)
+    statuses = status.find_new_statuses_allowed_to(user.role_for_project(project), tracker)
+    statuses << status unless statuses.empty?
+    statuses.uniq.sort
+  end
+  
   # Returns the mail adresses of users that should be notified for the issue
   def recipients
     recipients = project.recipients