trying to remove json warning + new heroku gem version
trying to remove json warning + new heroku gem version

Coren/engine,gdsn13/lococodevie,timsly/engine,emanuel/engine,Gnuside/contrib-locomotivecms-engine,masm/engine,timsly/engine,Sharagoz/engine,gdsn13/lococodevie,boie0025/engine-clone,Santhoshonet/ITXCMS,ipmobiletech/locomotivecms-engine,slavajacobson/engine,LaunchPadLab/engine,Santhoshonet/ITXCMS,furkanayhan/engine,scarl3tt/engine,gdsn13/locridevie,LaunchPadLab/engine,merqlove/engine,k-yamada/engine,furkanayhan/engine,joshsoftware/puneruby,Coren/engine,Gnuside/contrib-locomotivecms-engine,slavajacobson/engine,chepri/engine,StartupWeekend/engine,dreimannzelt/locomotive-engine,Vinagility/engine_old,gdsn13/locridevie,gdsn13/lococodevie,thirus/engine,dreimannzelt/locomotive-engine,k-yamada/engine,Santhoshonet/ITXCMS,dreimannzelt/locomotive-engine,jhe/Earthena-Website,joshsoftware/puneruby,ipmobiletech/locomotivecms-engine,bewculture/engine,ipmobiletech/locomotivecms-engine,timsly/engine,masm/engine,benhutton/engine_bak,chepri/engine,timsly/engine,travis-repos/engine,Vinagility/engine_old,Coren/engine,gdsn13/locridevie,merqlove/engine,gdsn13/lococodevie,bewculture/engine,thirus/engine,local-ch/locomotivecms-engine,joshsoftware/puneruby,bewculture/engine,k-yamada/engine,emanuel/engine,jhe/Earthena-Website,chepri/engine,gdsn13/locridevie,Gnuside/contrib-locomotivecms-engine,boie0025/engine-clone,masm/engine,Vinagility/engine_old,travis-repos/engine,boie0025/engine,geraudmathe/engine,gdsn13/locridevie,ipmobiletech/locomotivecms-engine,k-yamada/engine,benhutton/engine_bak,Sharagoz/engine,benhutton/engine_bak,local-ch/locomotivecms-engine,LaunchPadLab/engine,boie0025/engine-clone,dickeyxxx/girltalk,scarl3tt/engine,StartupWeekend/engine,Santhoshonet/ITXCMS,travis-repos/engine,boie0025/engine,jhe/Earthena-Website,thirus/engine,boie0025/engine,Santhoshonet/ITXCMS,local-ch/locomotivecms-engine,masm/engine,joshsoftware/puneruby,furkanayhan/engine,scarl3tt/engine,bewculture/engine,local-ch/locomotivecms-engine,merqlove/engine,scarl3tt/engine,StartupWeekend/engine,StartupWeekend/engine,furkanayhan/engine,geraudmathe/engine,LaunchPadLab/engine,merqlove/engine,travis-repos/engine,chepri/engine,Santhoshonet/ITXCMS,jhe/Earthena-Website,bewculture/engine,dickeyxxx/girltalk,boie0025/engine-clone,Coren/engine,boie0025/engine,slavajacobson/engine,Sharagoz/engine,dreimannzelt/locomotive-engine,emanuel/engine,thirus/engine,slavajacobson/engine