Adds a test for when link_copied_issue setting is set to "never".

git-svn-id: http://svn.redmine.org/redmine/trunk@13705 e93f8b46-1217-0410-a6f0-8f06a7374b81
Use :only instead of :except option in IssueRelationsController filters.

git-svn-id: http://svn.redmine.org/redmine/trunk@13706 e93f8b46-1217-0410-a6f0-8f06a7374b81