Fixed "current" period regression in leaderboard
Fixed "current" period regression in leaderboard

kostasdizas/github-dashing,kostasdizas/github-dashing,chillu/github-dashing,CGATOxford/dashboard,chillu/github-dashing,kalabox/kalabox-dashboard,CGATOxford/dashboard,chillu/github-dashing,kalabox/kalabox-dashboard,kalabox/kalabox-dashboard,kostasdizas/github-dashing,CGATOxford/dashboard