Update copyright year & remove junk
Update copyright year & remove junk

icebreaker/byebug,k0kubun/byebug,saisai/byebug,k0kubun/byebug,ozydingo/byebug,scalp42/byebug,scalp42/byebug,ozydingo/byebug,davidmowrer/in_class_projects_t2,miamiruby/byebug,guilherme/byebug,webdev1001/byebug,yui-knk/byebug,deivid-rodriguez/byebug,miamiruby/byebug,deivid-rodriguez/byebug,k0kubun/byebug,guilherme/byebug,guilherme/byebug,davidmowrer/in_class_projects_t2,deivid-rodriguez/byebug,yui-knk/byebug,saisai/byebug,os97673/byebug,icebreaker/byebug,os97673/byebug,webdev1001/byebug,davidmowrer/in_class_projects_t2,yui-knk/byebug