Adds Twig debug extension if application is not in production environment.
Adds Twig debug extension if application is not in production environment.

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