add permutations.t
add permutations.t

niner/roast,dankogai/roast,zostay/roast,skids/roast,b2gills/roast,skids/roast,zostay/roast,laben/roast,laben/roast,perl6/roast,dankogai/roast,zostay/roast,bitrauser/roast,skids/roast,b2gills/roast,cygx/roast,bitrauser/roast,laben/roast,niner/roast,cygx/roast,b2gills/roast,cygx/roast,dankogai/roast,dogbert17/roast,dogbert17/roast,niner/roast