Fix case-sensitive discovery of screenshots on Ruby < 2.2
Fix case-sensitive discovery of screenshots on Ruby < 2.2

sinoru/fastlane,futuretap/fastlane,allewun/fastlane,sinoru/fastlane,joshrlesch/fastlane,iMokhles/fastlane,tcurdt/fastlane,tommeier/fastlane,jeeftor/fastlane,olegoid/fastlane,adellibovi/fastlane,fastlane/fastlane,busce/fastlane,fabiomassimo/fastlane,farkasseb/fastlane,thasegaw/fastlane,jorgeazevedo/fastlane,lyndsey-ferguson/fastlane,bolom/fastlane,milch/fastlane,mgamer/fastlane,sylvek/fastlane,tpalmer/fastlane,ashfurrow/fastlane,carlosefonseca/fastlane,allewun/fastlane,SiarheiFedartsou/fastlane,dral3x/fastlane,sschlein/fastlane,jfresen/fastlane,fulldecent/fastlane,fastlane/fastlane,icecrystal23/fastlane,cpunion/fastlane,jorgeazevedo/fastlane,farkasseb/fastlane,lyndsey-ferguson/fastlane,busce/fastlane,lacostej/fastlane,bolom/fastlane,lyndsey-ferguson/fastlane,hjanuschka/fastlane,joshrlesch/fastlane,phatblat/fastlane,fulldecent/fastlane,SiarheiFedartsou/fastlane,marcelofabri/fastlane,vronin/fastlane,neonichu/fastlane,orta/fastlane,tcurdt/fastlane,mandrizzle/fastlane,soxjke/fastlane,olegoid/fastlane,tpalmer/fastlane,Econa77/fastlane,smallmiro/fastlane,ffittschen/fastlane,bolom/fastlane,oysta/fastlane,KrauseFx/fastlane,allewun/fastlane,taquitos/fastlane,NicholasFFox/fastlane,sinoru/fastlane,javibm/fastlane,lacostej/fastlane,ssmiech/fastlane,ssmiech/fastlane,sinoru/fastlane,jfresen/fastlane,soxjke/fastlane,fabiomassimo/fastlane,lacostej/fastlane,mathiasAichinger/fastlane,iCell/fastlane,soxjke/fastlane,mgrebenets/fastlane,sschlein/fastlane,bgannin/fastlane,carlosefonseca/fastlane,sinoru/fastlane,ffittschen/fastlane,tpalmer/fastlane,iCell/fastlane,ssmiech/fastlane,tmtrademarked/fastlane,NicholasFFox/fastlane,taquitos/fastlane,neonichu/fastlane,Econa77/fastlane,adellibovi/fastlane,bgannin/fastlane,jzallas/fastlane,fcy/fastlane,manuyavuz/fastlane,farkasseb/fastlane,thelvis4/fastlane,futuretap/fastlane,vronin/fastlane,bassrock/fastlane,powtac/fastlane,bassrock/fastlane,sschlein/fastlane,jorgeazevedo/fastlane,bassrock/fastlane,enozero/fastlane,iCell/fastlane,fcy/fastlane,ffittschen/fastlane,joshrlesch/fastlane,bgannin/fastlane,neonichu/fastlane,ExtremeMan/fastlane,ExtremeMan/fastlane,hjanuschka/fastlane,enozero/fastlane,fabiomassimo/fastlane,daveanderson/fastlane,adamcohenrose/fastlane,soxjke/fastlane,daveanderson/fastlane,cbowns/fastlane,ffittschen/fastlane,Sajjon/fastlane,matthewellis/fastlane,enozero/fastlane,javibm/fastlane,soxjke/fastlane,iCell/fastlane,RishabhTayal/fastlane,oronbz/fastlane,icecrystal23/fastlane,manuyavuz/fastlane,jfresen/fastlane,marcelofabri/fastlane,SandyChapman/fastlane,neonichu/fastlane,hjanuschka/fastlane,SemenovAlexander/fastlane,joshrlesch/fastlane,thelvis4/fastlane,kazuhidet/fastlane,mgamer/fastlane,st3fan/fastlane,adamcohenrose/fastlane,fastlane/fastlane,ssmiech/fastlane,luongm/fastlane,matthewellis/fastlane,lacostej/fastlane,marcelofabri/fastlane,revile/fastlane,sylvek/fastlane,dral3x/fastlane,farkasseb/fastlane,neonichu/fastlane,iMokhles/fastlane,marcelofabri/fastlane,daveanderson/fastlane,brbulic/fastlane,marcelofabri/fastlane,jfresen/fastlane,Econa77/fastlane,rimarsh/fastlane,oysta/fastlane,thelvis4/fastlane,smallmiro/fastlane,sschlein/fastlane,Liquidsoul/fastlane,oysta/fastlane,luongm/fastlane,Fanagame/fastlane,sinoru/fastlane,Econa77/fastlane,ExtremeMan/fastlane,lacostej/fastlane,tpalmer/fastlane,tommeier/fastlane,ashfurrow/fastlane,tpalmer/fastlane,brbulic/fastlane,matthewellis/fastlane,SemenovAlexander/fastlane,cpk1/fastlane,bolom/fastlane,mathiasAichinger/fastlane,tcurdt/fastlane,mbogh/fastlane,javibm/fastlane,Fanagame/fastlane,oronbz/fastlane,bgannin/fastlane,icecrystal23/fastlane,thelvis4/fastlane,jaleksynas/fastlane,olegoid/fastlane,powtac/fastlane,mandrizzle/fastlane,Fanagame/fastlane,enozero/fastlane,oysta/fastlane,smallmiro/fastlane,Sajjon/fastlane,st3fan/fastlane,carlosefonseca/fastlane,carlosefonseca/fastlane,ffittschen/fastlane,Acorld/fastlane,luongm/fastlane,neonichu/fastlane,Fanagame/fastlane,olegoid/fastlane,Acorld/fastlane,ExtremeMan/fastlane,Acorld/fastlane,lmirosevic/fastlane,milch/fastlane,matthewellis/fastlane,taquitos/fastlane,RishabhTayal/fastlane,mgamer/fastlane,milch/fastlane,KrauseFx/fastlane,thelvis4/fastlane,cpunion/fastlane,matthewellis/fastlane,brbulic/fastlane,ashfurrow/fastlane,st3fan/fastlane,soxjke/fastlane,iMokhles/fastlane,adellibovi/fastlane,kndl/fastlane,keatongreve/fastlane,RishabhTayal/fastlane,cpunion/fastlane,manuyavuz/fastlane,bolom/fastlane,SemenovAlexander/fastlane,smallmiro/fastlane,fastlane/fastlane,manuyavuz/fastlane,kndl/fastlane,oronbz/fastlane,kazuhidet/fastlane,olegoid/fastlane,futuretap/fastlane,cpk1/fastlane,soxjke/fastlane,cpk1/fastlane,NicholasFFox/fastlane,RishabhTayal/fastlane,cpunion/fastlane,kndl/fastlane,brbulic/fastlane,joshdholtz/fastlane,bassrock/fastlane,adamcohenrose/fastlane,manuyavuz/fastlane,SandyChapman/fastlane,SemenovAlexander/fastlane,jeeftor/fastlane,lyndsey-ferguson/fastlane,kndl/fastlane,cpk1/fastlane,lacostej/fastlane,fabiomassimo/fastlane,jfresen/fastlane,tcurdt/fastlane,manuyavuz/fastlane,milch/fastlane,ExtremeMan/fastlane,marcelofabri/fastlane,nafu/fastlane,Liquidsoul/fastlane,cpunion/fastlane,st3fan/fastlane,jorgeazevedo/fastlane,javibm/fastlane,ssmiech/fastlane,tmtrademarked/fastlane,fcy/fastlane,icecrystal23/fastlane,powtac/fastlane,danielbowden/fastlane,mathiasAichinger/fastlane,NicholasFFox/fastlane,joshdholtz/fastlane,oronbz/fastlane,mathiasAichinger/fastlane,joshdholtz/fastlane,icecrystal23/fastlane,ssmiech/fastlane,fulldecent/fastlane,SiarheiFedartsou/fastlane,Econa77/fastlane,jorgeazevedo/fastlane,ashfurrow/fastlane,allewun/fastlane,rimarsh/fastlane,brbulic/fastlane,Sajjon/fastlane,mgamer/fastlane,KrauseFx/fastlane,fabiomassimo/fastlane,powtac/fastlane,cbowns/fastlane,neonichu/fastlane,farkasseb/fastlane,fastlane/fastlane,jzallas/fastlane,joshrlesch/fastlane,keatongreve/fastlane,dowjones/fastlane,SandyChapman/fastlane,tommeier/fastlane,thasegaw/fastlane,iMokhles/fastlane,jeeftor/fastlane,joshrlesch/fastlane,bgerstle/fastlane,revile/fastlane,kazuhidet/fastlane,thelvis4/fastlane,sschlein/fastlane,tommeier/fastlane,smallmiro/fastlane,iMokhles/fastlane,fcy/fastlane,Fanagame/fastlane,mandrizzle/fastlane,farkasseb/fastlane,phatblat/fastlane,keatongreve/fastlane,Acorld/fastlane,taquitos/fastlane,rimarsh/fastlane,Econa77/fastlane,mbogh/fastlane,dowjones/fastlane,oronbz/fastlane,cpk1/fastlane,revile/fastlane,luongm/fastlane,mgamer/fastlane,Liquidsoul/fastlane,joshrlesch/fastlane,mandrizzle/fastlane,SiarheiFedartsou/fastlane,tcurdt/fastlane,st3fan/fastlane,jorgeazevedo/fastlane,rimarsh/fastlane,mathiasAichinger/fastlane,jeeftor/fastlane,kazuhidet/fastlane,jaleksynas/fastlane,danielbowden/fastlane,nafu/fastlane,mgrebenets/fastlane,cpunion/fastlane,fabiomassimo/fastlane,Acorld/fastlane,dowjones/fastlane,Sajjon/fastlane,sylvek/fastlane,SandyChapman/fastlane,fcy/fastlane,jzallas/fastlane,fulldecent/fastlane,iMokhles/fastlane,keatongreve/fastlane,lmirosevic/fastlane,bassrock/fastlane,powtac/fastlane,hjanuschka/fastlane,keatongreve/fastlane,jeeftor/fastlane,tommeier/fastlane,taquitos/fastlane,mathiasAichinger/fastlane,adamcohenrose/fastlane,lyndsey-ferguson/fastlane,Liquidsoul/fastlane,tmtrademarked/fastlane,rimarsh/fastlane,powtac/fastlane,javibm/fastlane,bgannin/fastlane,SandyChapman/fastlane,dowjones/fastlane,mgrebenets/fastlane,fcy/fastlane,danielbowden/fastlane,ffittschen/fastlane,thasegaw/fastlane,lmirosevic/fastlane,dowjones/fastlane,kndl/fastlane,matthewellis/fastlane,mandrizzle/fastlane,ashfurrow/fastlane,SandyChapman/fastlane,revile/fastlane,Liquidsoul/fastlane,phatblat/fastlane,luongm/fastlane,nafu/fastlane,sylvek/fastlane,dral3x/fastlane,cpk1/fastlane,milch/fastlane,jaleksynas/fastlane,mbogh/fastlane,ExtremeMan/fastlane,mgrebenets/fastlane,mgamer/fastlane,dowjones/fastlane,tmtrademarked/fastlane,SemenovAlexander/fastlane,thasegaw/fastlane,bolom/fastlane,kazuhidet/fastlane,iCell/fastlane,cbowns/fastlane,cpunion/fastlane,enozero/fastlane,powtac/fastlane,bgannin/fastlane,joshdholtz/fastlane,st3fan/fastlane,tmtrademarked/fastlane,joshdholtz/fastlane,lyndsey-ferguson/fastlane,taquitos/fastlane,jfresen/fastlane,ssmiech/fastlane,rimarsh/fastlane,smallmiro/fastlane,matthewellis/fastlane,vronin/fastlane,joshdholtz/fastlane,vronin/fastlane,brbulic/fastlane,adamcohenrose/fastlane,ashfurrow/fastlane,oronbz/fastlane,busce/fastlane,keatongreve/fastlane,Acorld/fastlane,Sajjon/fastlane,Fanagame/fastlane,fabiomassimo/fastlane,kohtenko/fastlane,daveanderson/fastlane,phatblat/fastlane,adellibovi/fastlane,carlosefonseca/fastlane,RishabhTayal/fastlane,bgannin/fastlane,SemenovAlexander/fastlane,nafu/fastlane,phatblat/fastlane,RishabhTayal/fastlane,bgerstle/fastlane,ExtremeMan/fastlane,rimarsh/fastlane,RishabhTayal/fastlane,Econa77/fastlane,busce/fastlane,cbowns/fastlane,smallmiro/fastlane,busce/fastlane,dral3x/fastlane,fulldecent/fastlane,busce/fastlane,iCell/fastlane,dral3x/fastlane,daveanderson/fastlane,sylvek/fastlane,luongm/fastlane,busce/fastlane,dral3x/fastlane,javibm/fastlane,iMokhles/fastlane,tpalmer/fastlane,jaleksynas/fastlane,olegoid/fastlane,oysta/fastlane,brbulic/fastlane,orta/fastlane,mandrizzle/fastlane,phatblat/fastlane,phatblat/fastlane,keatongreve/fastlane,sylvek/fastlane,hjanuschka/fastlane,Liquidsoul/fastlane,taquitos/fastlane,jfresen/fastlane,vronin/fastlane,jeeftor/fastlane,danielbowden/fastlane,nafu/fastlane,iCell/fastlane,cbowns/fastlane,jorgeazevedo/fastlane,thasegaw/fastlane,marcelofabri/fastlane,kndl/fastlane,manuyavuz/fastlane,farkasseb/fastlane,SiarheiFedartsou/fastlane,mandrizzle/fastlane,SemenovAlexander/fastlane,dral3x/fastlane,hjanuschka/fastlane,mgrebenets/fastlane,mbogh/fastlane,carlosefonseca/fastlane,jaleksynas/fastlane,danielbowden/fastlane,tommeier/fastlane,nafu/fastlane,tommeier/fastlane,icecrystal23/fastlane,tmtrademarked/fastlane,revile/fastlane,KrauseFx/fastlane,fcy/fastlane,adellibovi/fastlane,danielbowden/fastlane,olegoid/fastlane,kndl/fastlane,allewun/fastlane,revile/fastlane,enozero/fastlane,mgrebenets/fastlane,NicholasFFox/fastlane,ffittschen/fastlane,sinoru/fastlane,nafu/fastlane,KrauseFx/fastlane,Sajjon/fastlane,mgamer/fastlane,fulldecent/fastlane,danielbowden/fastlane,ashfurrow/fastlane,mbogh/fastlane,mbogh/fastlane,adamcohenrose/fastlane,cbowns/fastlane,st3fan/fastlane,daveanderson/fastlane,jaleksynas/fastlane,tcurdt/fastlane,futuretap/fastlane,thasegaw/fastlane,futuretap/fastlane,mathiasAichinger/fastlane,dowjones/fastlane,thelvis4/fastlane,KrauseFx/fastlane,milch/fastlane,enozero/fastlane,Acorld/fastlane,bolom/fastlane,cpk1/fastlane,vronin/fastlane,jzallas/fastlane,hjanuschka/fastlane,jaleksynas/fastlane,futuretap/fastlane,jeeftor/fastlane,thasegaw/fastlane,Sajjon/fastlane,fastlane/fastlane,SiarheiFedartsou/fastlane,mbogh/fastlane,tmtrademarked/fastlane,sylvek/fastlane,SandyChapman/fastlane,oysta/fastlane,NicholasFFox/fastlane,kazuhidet/fastlane,bassrock/fastlane,sschlein/fastlane,lmirosevic/fastlane,Liquidsoul/fastlane,lyndsey-ferguson/fastlane,mgrebenets/fastlane,oronbz/fastlane,kohtenko/fastlane,javibm/fastlane,fulldecent/fastlane,lmirosevic/fastlane,milch/fastlane,adamcohenrose/fastlane,carlosefonseca/fastlane,luongm/fastlane,sschlein/fastlane,jzallas/fastlane,jzallas/fastlane,tcurdt/fastlane,KrauseFx/fastlane,allewun/fastlane,joshdholtz/fastlane,futuretap/fastlane,allewun/fastlane,jzallas/fastlane,kazuhidet/fastlane,NicholasFFox/fastlane,tpalmer/fastlane,adellibovi/fastlane,adellibovi/fastlane,cbowns/fastlane,lmirosevic/fastlane,lmirosevic/fastlane,vronin/fastlane,daveanderson/fastlane,oysta/fastlane,Fanagame/fastlane,SiarheiFedartsou/fastlane,revile/fastlane