Added tooltips for watch / unwatch WP
Merge branch 'feature/adding-and-removing-watchers' of github.com:opf/openproject into feature/adding-and-removing-watchers
Anon. user cannot see link to watch WP
Merge branch 'feature/adding-and-removing-watchers' of github.com:opf/openproject into feature/adding-and-removing-watchers