Fixing HTML in groups index view

Contributed by Gregor Schmidt.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11613 e93f8b46-1217-0410-a6f0-8f06a7374b81
Czech translation changed by Karel Pičman (#13450)

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11614 e93f8b46-1217-0410-a6f0-8f06a7374b81
Bulgarian translation ordered by Ivan Cenov (#13458)

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11615 e93f8b46-1217-0410-a6f0-8f06a7374b81