Depend on sourcemap gem
Depend on sourcemap gem

/cc @maccman

prathamesh-sonpatki/sprockets,kappezoro/sprockets,Andreis13/sprockets,prusswan/sprockets,jeremy/sprockets,basecamp/sprockets,bdezonia/sprockets,orlando/sprockets,askl56/sprockets,recursecenter/sprockets,maclover7/sprockets,sferik/sprockets,eileencodes/sprockets,guilleiguaran/sprockets,rails/sprockets,JuanitoFatas/sprockets,daniel-rikowski/sprockets,masarakki/sprockets,jcoyne/sprockets