Tests calling Supply.(zip|merge) as class methods
Tests calling Supply.(zip|merge) as class methods

Sadly, the .merge tests still need to be fudged because of
"Cannot call method 'more' on a null object"

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