fix sortable talks headers on dashboard
fix sortable talks headers on dashboard

xavierleune/cfp,noahd1/opencfp,madisonphp/opencfp,madisonphp/opencfp,noahd1/opencfp,opencfp/opencfp,chrispecoraro/opencfp,zymsys/opencfp,DevOpsDaysChicago/opencfp,DevOpsDaysChicago/opencfp,MidwestPHP/opencfp_mwphp15,MidwestPHP/opencfp_mwphp15,zhenqing/opencfp,opencfp/opencfp,mdwheele/opencfp,phphants/opencfp,opencfp/opencfp,jugisahunk/200OK_CFP,pmeth/opencfp,sunshinephp/opencfp,OpenWestConference/opencfp,chrispecoraro/opencfp,localheinz/opencfp,madisonphp/opencfp,Acidburn0zzz/opencfp,zymsys/opencfp,GrUSP/opencfp,mdwheele/opencfp,brynary/opencfp,sunshinephp/opencfp,pmeth/opencfp,DallasPHP/opencfp,localheinz/opencfp,OpenWestConference/opencfp,GrUSP/opencfp,monoku/opencfp,xavierleune/cfp,Acidburn0zzz/opencfp,brynary/opencfp,DallasPHP/opencfp,phphants/opencfp,MidwestPHP/opencfp_mwphp15,monoku/opencfp,GrUSP/opencfp,brynary/opencfp,localheinz/opencfp,PHPBenelux/opencfp,DevOpsDaysChicago/opencfp,OpenWestConference/opencfp,xavierleune/cfp,zhenqing/opencfp,pmeth/opencfp,mdwheele/opencfp,PHPBenelux/opencfp,phphants/opencfp,GrUSP/opencfp,monoku/opencfp,noahd1/opencfp,MidwestPHP/opencfp_mwphp15,OpenWestConference/opencfp,PHPBenelux/opencfp,monoku/opencfp,localheinz/opencfp,phphants/opencfp,zymsys/opencfp,zhenqing/opencfp,jugisahunk/200OK_CFP,sunshinephp/opencfp,PHPBenelux/opencfp,Acidburn0zzz/opencfp,mdwheele/opencfp,DallasPHP/opencfp,jugisahunk/200OK_CFP