Move project_last_activity to ProjectsHelper

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Compact projects list on dashboard

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Fix 500 for rdoc files

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Merge branch 'ui/compact_projects_list' of /home/git/repositories/gitlab/gitlabhq
Merge branch 'bug/500_on_rdoc_readme' of /home/git/repositories/gitlab/gitlabhq