Add unit test for overriding ignored files (fixes #1701)
Add unit test for overriding ignored files (fixes #1701)

letiemble/syncthing,butlife/syncthing,danieldc/syncthing,mateon1/syncthing,guerrerocarlos/syncthing,syncthing/syncthing,modulexcite/syncthing,modulexcite/syncthing,jgke/syncthing,makeTaller/syncthing,cherylquirion/syncthing,burkemw3/syncthing,letiemble/syncthing,toddleish/syncthing,wsgcsysadmin/syncthing,TheBigBear/syncthing,michalliu/whale,kamadak/syncthing,norgeous/syncthing,kralo/syncthing,manveru/syncthing,abhishekgahlot/syncthing,pembo210/syncthing,makeTaller/syncthing,danieldc/syncthing,kozec/syncthing,josephyzhou/syncthing,syncthing/syncthing,imsodin/syncthing,trojanspike/syncthing,ZdenekBrichacek/syncthing,toddleish/syncthing,itscaro/syncthing,canton7/syncthing,buinsky/syncthing,ralder/syncthing,josephyzhou/syncthing,mateon1/syncthing,cherylquirion/syncthing,flyzjhz/syncthing,kattunga/syncthing,lkwg82/syncthing,jemmy655/syncthing,uok/syncthing,ralder/syncthing,syncthing/syncthing,flyzjhz/syncthing,MinFu/syncthing,modulexcite/syncthing,norgeous/syncthing,jbfavre/syncthing,kamadak/syncthing,jryans/syncthing,modulexcite/syncthing,josephyzhou/syncthing,buinsky/syncthing,TheBigBear/syncthing,beni55/syncthing,xduugu/syncthing,letiemble/syncthing,rumpelsepp/syncthing,jemmy655/syncthing,MinFu/syncthing,syncthing/syncthing,roth1002/syncthing,jryans/syncthing,burkemw3/syncthing,itscaro/syncthing,itscaro/syncthing,jemmy655/syncthing,gillisig/syncthing,TheBigBear/syncthing,atyenoria/syncthing,kozec/syncthing,atyenoria/syncthing,guerrerocarlos/syncthing,bigscoop/syncthing,nrm21/syncthing,TheBigBear/syncthing,danieldc/syncthing,kralo/syncthing,xduugu/syncthing,alex2108/syncthing,guerrerocarlos/syncthing,le9i0nx/syncthing,jryans/syncthing,Kudalufi/syncthing,krig/syncthing,brgmnn/syncthing,alex2108/syncthing,kluppy/syncthing,rumpelsepp/syncthing,pembo210/syncthing,indradhanush/syncthing,lkwg82/syncthing,michalliu/whale,kralo/syncthing,burkemw3/syncthing,jbfavre/syncthing,manveru/syncthing,kluppy/syncthing,makeTaller/syncthing,imsodin/syncthing,ZdenekBrichacek/syncthing,tenebreux/syncthing,jbfavre/syncthing,abhishekgahlot/syncthing,AudriusButkevicius/syncthing,mateon1/syncthing,canton7/syncthing,syncthing/syncthing,manveru/syncthing,uok/syncthing,mcanthony/syncthing,ProactiveServices/syncthing,cherylquirion/syncthing,alex2108/syncthing,beni55/syncthing,letiemble/syncthing,le9i0nx/syncthing,le9i0nx/syncthing,MinFu/syncthing,ProactiveServices/syncthing,ralder/syncthing,flyzjhz/syncthing,rumpelsepp/syncthing,imsodin/syncthing,itscaro/syncthing,AudriusButkevicius/syncthing,alex2108/syncthing,mcanthony/syncthing,nrm21/syncthing,brgmnn/syncthing,ZdenekBrichacek/syncthing,makeTaller/syncthing,kozec/syncthing,plouj/syncthing,buinsky/syncthing,ProactiveServices/syncthing,krig/syncthing,wweich/syncthing,mateon1/syncthing,pembo210/syncthing,Zillode/syncthing,nrm21/syncthing,Kudalufi/syncthing,arkhi/syncthing,printedheart/syncthing,krig/syncthing,Zillode/syncthing,ralder/syncthing,Kudalufi/syncthing,jbfavre/syncthing,kluppy/syncthing,wsgcsysadmin/syncthing,indradhanush/syncthing,mcanthony/syncthing,krig/syncthing,AudriusButkevicius/syncthing,kc1212/syncthing,uok/syncthing,roth1002/syncthing,jryans/syncthing,jemmy655/syncthing,atyenoria/syncthing,abhishekgahlot/syncthing,canton7/syncthing,trojanspike/syncthing,josephyzhou/syncthing,wweich/syncthing,jgke/syncthing,ZdenekBrichacek/syncthing,kozec/syncthing,danieldc/syncthing,atyenoria/syncthing,wweich/syncthing,Kudalufi/syncthing,michalliu/whale,indradhanush/syncthing,brgmnn/syncthing,mcanthony/syncthing,lkwg82/syncthing,plouj/syncthing,MinFu/syncthing,kamadak/syncthing,imsodin/syncthing,xduugu/syncthing,toddleish/syncthing,manveru/syncthing,flyzjhz/syncthing,kralo/syncthing,indradhanush/syncthing,lkwg82/syncthing,printedheart/syncthing,nrm21/syncthing,gillisig/syncthing,toddleish/syncthing,arkhi/syncthing,burkemw3/syncthing,trojanspike/syncthing,jgke/syncthing,arkhi/syncthing,butlife/syncthing,bigscoop/syncthing,roth1002/syncthing,kattunga/syncthing,imsodin/syncthing,kamadak/syncthing,trojanspike/syncthing,tenebreux/syncthing,cherylquirion/syncthing,norgeous/syncthing,beni55/syncthing,kc1212/syncthing,syncthing/syncthing,wweich/syncthing,Zillode/syncthing,kluppy/syncthing,tenebreux/syncthing,kc1212/syncthing,plouj/syncthing,brgmnn/syncthing,kattunga/syncthing,ProactiveServices/syncthing,butlife/syncthing,buinsky/syncthing,le9i0nx/syncthing,gillisig/syncthing,norgeous/syncthing,arkhi/syncthing,printedheart/syncthing,AudriusButkevicius/syncthing,michalliu/whale,abhishekgahlot/syncthing,bigscoop/syncthing,Zillode/syncthing,bigscoop/syncthing,butlife/syncthing,xduugu/syncthing,gillisig/syncthing,beni55/syncthing,plouj/syncthing,roth1002/syncthing,pembo210/syncthing,wsgcsysadmin/syncthing,jgke/syncthing,printedheart/syncthing,guerrerocarlos/syncthing,wsgcsysadmin/syncthing,rumpelsepp/syncthing,kc1212/syncthing,canton7/syncthing,kattunga/syncthing,uok/syncthing,tenebreux/syncthing