Adds Twig global variable projecting whether or not the CFP is open.
Adds Twig global variable projecting whether or not the CFP is open.

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