Add view_issues permission (#3187).

A migration adds this permission to all existing roles to preserve current behaviour.
This permission controls access to issues, roadmap and changelog.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3039 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/helpers/application_helper.rb

@@ -480,7 +480,7 @@ module ApplicationHelper
           oid = oid.to_i
           case prefix
           when nil
-            if issue = Issue.find_by_id(oid, :include => [:project, :status], :conditions => Project.visible_by(User.current))
+            if issue = Issue.visible.find_by_id(oid, :include => :status)
               link = link_to("##{oid}", {:only_path => only_path, :controller => 'issues', :action => 'show', :id => oid},
                                         :class => (issue.closed? ? 'issue closed' : 'issue'),
                                         :title => "#{truncate(issue.subject, :length => 100)} (#{issue.status.name})")