Respond with 404 when params[:ids] is missing (#12898).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11226 e93f8b46-1217-0410-a6f0-8f06a7374b81
Strip {{toc}} tags in pdf exports (#9842).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11227 e93f8b46-1217-0410-a6f0-8f06a7374b81
"Parent task is invalid" while editing child issues with restricted Issues Visibility (#12851).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11228 e93f8b46-1217-0410-a6f0-8f06a7374b81